[ADD] instant messaging and live chat features

bzr revid: nicolas.vanhoren@openerp.com-20130422113254-ixdfha7s8jbgy2y2

55 files changed, 17153 insertions, 0 deletions

diff --git a/addons/im/__init__.py b/addons/im/__init__.py
new file mode 100644
index 00000000000..23c6ad13350
--- /dev/null
+++ b/addons/im/__init__.py
@@ -0,0 +1,2 @@
+
+import im
diff --git a/addons/im/__openerp__.py b/addons/im/__openerp__.py
new file mode 100644
index 00000000000..a76dd7c8cc2
--- /dev/null
+++ b/addons/im/__openerp__.py
@@ -0,0 +1,27 @@
+{
+    'name' : 'Instant Messaging',
+    'version': '1.0',
+    'summary': 'Live Chat, Talks with Others',
+    'sequence': '18',
+    'category': 'Tools',
+    'complexity': 'easy',
+    'description':
+        """
+Instant Messaging
+=================
+
+Allows users to chat with each other in real time. Find other users easily and
+chat in real time. It support several chats in parallel.
+        """,
+    'data': [
+        'security/ir.model.access.csv',
+        'security/im_security.xml',
+    ],
+    'depends' : ['base'],
+    'js': ['static/src/js/*.js'],
+    'css': ['static/src/css/*.css'],
+    'qweb': ['static/src/xml/*.xml'],
+    'installable': True,
+    'auto_install': False,
+    'application': True,
+}
diff --git a/addons/im/im.py b/addons/im/im.py
new file mode 100644
index 00000000000..0de9ea8c79b
--- /dev/null
+++ b/addons/im/im.py
@@ -0,0 +1,351 @@
+# -*- coding: utf-8 -*-
+##############################################################################
+#
+#    OpenERP, Open Source Management Solution
+#    Copyright (C) 2004-2010 Tiny SPRL (<http://tiny.be>).
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU Affero General Public License for more details.
+#
+#    You should have received a copy of the GNU Affero General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+##############################################################################
+
+import openerp
+import openerp.tools.config
+import openerp.modules.registry
+from openerp.tools.misc import DEFAULT_SERVER_DATETIME_FORMAT
+import datetime
+from openerp.osv import osv, fields
+import time
+import logging
+import json
+import select
+
+_logger = logging.getLogger(__name__)
+
+def listen_channel(cr, channel_name, handle_message, check_stop=(lambda: False), check_stop_timer=60.):
+    """
+        Begin a loop, listening on a PostgreSQL channel. This method does never terminate by default, you need to provide a check_stop
+        callback to do so. This method also assume that all notifications will include a message formated using JSON (see the
+        corresponding notify_channel() method).
+
+        :param db_name: database name
+        :param channel_name: the name of the PostgreSQL channel to listen
+        :param handle_message: function that will be called when a message is received. It takes one argument, the message
+            attached to the notification.
+        :type handle_message: function (one argument)
+        :param check_stop: function that will be called periodically (see the check_stop_timer argument). If it returns True
+            this function will stop to watch the channel.
+        :type check_stop: function (no arguments)
+        :param check_stop_timer: The maximum amount of time between calls to check_stop_timer (can be shorter if messages
+            are received).
+    """
+    try:
+        conn = cr._cnx
+        cr.execute("listen " + channel_name + ";")
+        cr.commit();
+        stopping = False
+        while not stopping:
+            if check_stop():
+                stopping = True
+                break
+            if select.select([conn], [], [], check_stop_timer) == ([],[],[]):
+                pass
+            else:
+                conn.poll()
+                while conn.notifies:
+                    message = json.loads(conn.notifies.pop().payload)
+                    handle_message(message)
+    finally:
+        try:
+            cr.execute("unlisten " + channel_name + ";")
+            cr.commit()
+        except:
+            pass # can't do anything if that fails
+
+def notify_channel(cr, channel_name, message):
+    """
+        Send a message through a PostgreSQL channel. The message will be formatted using JSON. This method will
+        commit the given transaction because the notify command in Postgresql seems to work correctly when executed in
+        a separate transaction (despite what is written in the documentation).
+
+        :param cr: The cursor.
+        :param channel_name: The name of the PostgreSQL channel.
+        :param message: The message, must be JSON-compatible data.
+    """
+    cr.commit()
+    cr.execute("notify " + channel_name + ", %s", [json.dumps(message)])
+    cr.commit()
+
+POLL_TIMER = 30
+DISCONNECTION_TIMER = POLL_TIMER + 5
+WATCHER_ERROR_DELAY = 10
+
+if openerp.evented:
+    import gevent
+    import gevent.event
+
+    class ImWatcher(object):
+        watchers = {}
+
+        @staticmethod
+        def get_watcher(db_name):
+            if not ImWatcher.watchers.get(db_name):
+                ImWatcher(db_name)
+            return ImWatcher.watchers[db_name]
+
+        def __init__(self, db_name):
+            self.db_name = db_name
+            ImWatcher.watchers[db_name] = self
+            self.waiting = 0
+            self.wait_id = 0
+            self.users = {}
+            self.users_watch = {}
+            gevent.spawn(self.loop)
+
+        def loop(self):
+            _logger.info("Begin watching on channel im_channel for database " + self.db_name)
+            stop = False
+            while not stop:
+                try:
+                    registry = openerp.modules.registry.RegistryManager.get(self.db_name)
+                    with registry.cursor() as cr:
+                        listen_channel(cr, "im_channel", self.handle_message, self.check_stop)
+                        stop = True
+                except:
+                    # if something crash, we wait some time then try again
+                    _logger.exception("Exception during watcher activity")
+                    time.sleep(WATCHER_ERROR_DELAY)
+            _logger.info("End watching on channel im_channel for database " + self.db_name)
+            del ImWatcher.watchers[self.db_name]
+
+        def handle_message(self, message):
+            if message["type"] == "message":
+                for waiter in self.users.get(message["receiver"], {}).values():
+                    waiter.set()
+            else: #type status
+                for waiter in self.users_watch.get(message["user"], {}).values():
+                    waiter.set()
+
+        def check_stop(self):
+            return self.waiting == 0
+
+        def _get_wait_id(self):
+            self.wait_id += 1
+            return self.wait_id
+
+        def stop(self, user_id, watch_users, timeout=None):
+            wait_id = self._get_wait_id()
+            event = gevent.event.Event()
+            self.waiting += 1
+            self.users.setdefault(user_id, {})[wait_id] = event
+            for watch in watch_users:
+                self.users_watch.setdefault(watch, {})[wait_id] = event
+            try:
+                event.wait(timeout)
+            finally:
+                for watch in watch_users:
+                    del self.users_watch[watch][wait_id]
+                    if len(self.users_watch[watch]) == 0:
+                        del self.users_watch[watch]
+                del self.users[user_id][wait_id]
+                if len(self.users[user_id]) == 0:
+                    del self.users[user_id]
+                self.waiting -= 1
+
+
+class LongPollingController(openerp.addons.web.http.Controller):
+    _cp_path = '/longpolling/im'
+
+    @openerp.addons.web.http.jsonrequest
+    def poll(self, req, last=None, users_watch=None, db=None, uid=None, password=None, uuid=None):
+        assert_uuid(uuid)
+        if not openerp.evented:
+            raise Exception("Not usable in a server not running gevent")
+        if db is not None:
+            req.session._db = db
+            req.session._uid = uid
+            req.session._password = password
+        req.session.model('im.user').im_connect(uuid=uuid, context=req.context)
+        my_id = req.session.model('im.user').get_by_user_id(uuid or req.session._uid, req.context)["id"]
+        num = 0
+        while True:
+            res = req.session.model('im.message').get_messages(last, users_watch, uuid=uuid, context=req.context)
+            if num >= 1 or len(res["res"]) > 0:
+                return res
+            last = res["last"]
+            num += 1
+            ImWatcher.get_watcher(res["dbname"]).stop(my_id, users_watch or [], POLL_TIMER)
+
+    @openerp.addons.web.http.jsonrequest
+    def activated(self, req):
+        return not not openerp.evented
+
+    @openerp.addons.web.http.jsonrequest
+    def gen_uuid(self, req):
+        import uuid
+        return "%s" % uuid.uuid1()
+
+def assert_uuid(uuid):
+    if not isinstance(uuid, (str, unicode, type(None))):
+        raise Exception("%s is not a uuid" % uuid)
+
+
+class im_message(osv.osv):
+    _name = 'im.message'
+
+    _order = "date desc"
+
+    _columns = {
+        'message': fields.char(string="Message", size=200, required=True),
+        'from_id': fields.many2one("im.user", "From", required= True, ondelete='cascade'),
+        'to_id': fields.many2one("im.user", "To", required=True, select=True, ondelete='cascade'),
+        'date': fields.datetime("Date", required=True, select=True),
+    }
+
+    _defaults = {
+        'date': lambda *args: datetime.datetime.now().strftime(DEFAULT_SERVER_DATETIME_FORMAT),
+    }
+    
+    def get_messages(self, cr, uid, last=None, users_watch=None, uuid=None, context=None):
+        assert_uuid(uuid)
+        users_watch = users_watch or []
+
+        # complex stuff to determine the last message to show
+        users = self.pool.get("im.user")
+        my_id = users.get_by_user_id(cr, uid, uuid or uid, context=context)["id"]
+        c_user = users.browse(cr, openerp.SUPERUSER_ID, my_id, context=context)
+        if last:
+            if c_user.im_last_received < last:
+                users.write(cr, openerp.SUPERUSER_ID, my_id, {'im_last_received': last}, context=context)
+        else:
+            last = c_user.im_last_received or -1
+
+        # how fun it is to always need to reorder results from read
+        mess_ids = self.search(cr, openerp.SUPERUSER_ID, [['id', '>', last], ['to_id', '=', my_id]], order="id", context=context)
+        mess = self.read(cr, openerp.SUPERUSER_ID, mess_ids, ["id", "message", "from_id", "date"], context=context)
+        index = {}
+        for i in xrange(len(mess)):
+            index[mess[i]["id"]] = mess[i]
+        mess = []
+        for i in mess_ids:
+            mess.append(index[i])
+
+        if len(mess) > 0:
+            last = mess[-1]["id"]
+        users_status = users.read(cr, openerp.SUPERUSER_ID, users_watch, ["im_status"], context=context)
+        return {"res": mess, "last": last, "dbname": cr.dbname, "users_status": users_status}
+
+    def post(self, cr, uid, message, to_user_id, uuid=None, context=None):
+        assert_uuid(uuid)
+        my_id = self.pool.get('im.user').get_by_user_id(cr, uid, uuid or uid)["id"]
+        self.create(cr, openerp.SUPERUSER_ID, {"message": message, 'from_id': my_id, 'to_id': to_user_id}, context=context)
+        notify_channel(cr, "im_channel", {'type': 'message', 'receiver': to_user_id})
+        return False
+
+class im_user(osv.osv):
+    _name = "im.user"
+
+    def _im_status(self, cr, uid, ids, something, something_else, context=None):
+        res = {}
+        current = datetime.datetime.now()
+        delta = datetime.timedelta(0, DISCONNECTION_TIMER)
+        data = self.read(cr, openerp.SUPERUSER_ID, ids, ["im_last_status_update", "im_last_status"], context=context)
+        for obj in data:
+            last_update = datetime.datetime.strptime(obj["im_last_status_update"], DEFAULT_SERVER_DATETIME_FORMAT)
+            res[obj["id"]] = obj["im_last_status"] and (last_update + delta) > current
+        return res
+
+    def search_users(self, cr, uid, domain, fields, limit, context=None):
+        # do not user openerp.SUPERUSER_ID, reserved to normal users
+        found = self.pool.get('res.users').search(cr, uid, domain, limit=limit, context=context)
+        found = self.get_by_user_ids(cr, uid, found, context=context)
+        return self.read(cr, uid, found, fields, context=context)
+
+    def im_connect(self, cr, uid, uuid=None, context=None):
+        assert_uuid(uuid)
+        return self._im_change_status(cr, uid, True, uuid, context)
+
+    def im_disconnect(self, cr, uid, uuid=None, context=None):
+        assert_uuid(uuid)
+        return self._im_change_status(cr, uid, False, uuid, context)
+
+    def _im_change_status(self, cr, uid, new_one, uuid=None, context=None):
+        assert_uuid(uuid)
+        id = self.get_by_user_id(cr, uid, uuid or uid, context=context)["id"]
+        current_status = self.read(cr, openerp.SUPERUSER_ID, id, ["im_status"], context=None)["im_status"]
+        self.write(cr, openerp.SUPERUSER_ID, id, {"im_last_status": new_one, 
+            "im_last_status_update": datetime.datetime.now().strftime(DEFAULT_SERVER_DATETIME_FORMAT)}, context=context)
+        if current_status != new_one:
+            notify_channel(cr, "im_channel", {'type': 'status', 'user': id})
+        return True
+
+    def get_by_user_id(self, cr, uid, id, context=None):
+        ids = self.get_by_user_ids(cr, uid, [id], context=context)
+        return ids[0]
+
+    def get_by_user_ids(self, cr, uid, ids, context=None):
+        user_ids = [x for x in ids if isinstance(x, int)]
+        uuids = [x for x in ids if isinstance(x, (str, unicode))]
+        users = self.search(cr, openerp.SUPERUSER_ID, ["|", ["user", "in", user_ids], ["uuid", "in", uuids]], context=None)
+        records = self.read(cr, openerp.SUPERUSER_ID, users, ["user", "uuid"], context=None)
+        inside = {}
+        for i in records:
+            if i["user"]:
+                inside[i["user"][0]] = True
+            elif ["uuid"]:
+                inside[i["uuid"]] = True
+        not_inside = {}
+        for i in ids:
+            if not (i in inside):
+                not_inside[i] = True
+        for to_create in not_inside.keys():
+            if isinstance(to_create, int):
+                created = self.create(cr, openerp.SUPERUSER_ID, {"user": to_create}, context=context)
+                records.append({"id": created, "user": [to_create, ""]})
+            else:
+                created = self.create(cr, openerp.SUPERUSER_ID, {"uuid": to_create}, context=context)
+                records.append({"id": created, "uuid": to_create})
+        return records
+
+    def assign_name(self, cr, uid, uuid, name, context=None):
+        assert_uuid(uuid)
+        id = self.get_by_user_id(cr, uid, uuid or uid, context=context)["id"]
+        self.write(cr, openerp.SUPERUSER_ID, id, {"assigned_name": name}, context=context)
+        return True
+
+    def _get_name(self, cr, uid, ids, name, arg, context=None):
+        res = {}
+        for record in self.browse(cr, uid, ids, context=context):
+            res[record.id] = record.assigned_name
+            if record.user:
+                res[record.id] = record.user.name
+                continue
+        return res
+
+    _columns = {
+        'name': fields.function(_get_name, type='char', size=200, string="Name", store=True, readonly=True),
+        'assigned_name': fields.char(string="Assigned Name", size=200, required=False),
+        'image': fields.related('user', 'image_small', type='binary', string="Image", readonly=True),
+        'user': fields.many2one("res.users", string="User", select=True, ondelete='cascade'),
+        'uuid': fields.char(string="UUID", size=50, select=True),
+        'im_last_received': fields.integer(string="Instant Messaging Last Received Message"),
+        'im_last_status': fields.boolean(strint="Instant Messaging Last Status"),
+        'im_last_status_update': fields.datetime(string="Instant Messaging Last Status Update"),
+        'im_status': fields.function(_im_status, string="Instant Messaging Status", type='boolean'),
+    }
+
+    _defaults = {
+        'im_last_received': -1,
+        'im_last_status': False,
+        'im_last_status_update': lambda *args: datetime.datetime.now().strftime(DEFAULT_SERVER_DATETIME_FORMAT),
+    }
diff --git a/addons/im/security/im_security.xml b/addons/im/security/im_security.xml
new file mode 100644
index 00000000000..10297ac0669
--- /dev/null
+++ b/addons/im/security/im_security.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0"?>
+<openerp>
+    <data>
+        <record id="message_rule_1" model="ir.rule">
+            <field name="name">Can only read messages that you sent or messages sent to you</field>
+            <field name="model_id" ref="model_im_message"/>
+            <field name="groups" eval="[(6,0,[ref('base.group_user')])]"/>
+            <field name="domain_force">["|", ('to_id.user', '=', user.id), ('from_id.user', '=', user.id)]</field>
+            <field name="perm_unlink" eval="0"/>
+            <field name="perm_write" eval="0"/>
+            <field name="perm_read" eval="1"/>
+            <field name="perm_create" eval="0"/>
+        </record>
+
+        <record id="users_rule_1" model="ir.rule">
+            <field name="name">Can only modify your user</field>
+            <field name="model_id" ref="model_im_user"/>
+            <field name="groups" eval="[(6,0,[ref('base.group_user')])]"/>
+            <field name="domain_force">[('user', '=', user.id)]</field>
+            <field name="perm_unlink" eval="0"/>
+            <field name="perm_write" eval="1"/>
+            <field name="perm_read" eval="0"/>
+            <field name="perm_create" eval="0"/>
+        </record>
+    </data>
+</openerp>
diff --git a/addons/im/security/ir.model.access.csv b/addons/im/security/ir.model.access.csv
new file mode 100644
index 00000000000..ed639353e21
--- /dev/null
+++ b/addons/im/security/ir.model.access.csv
@@ -0,0 +1,3 @@
+id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink
+access_im_message,im.message,model_im_message,base.group_user,1,0,1,0
+access_im_user,im.user,model_im_user,base.group_user,1,1,1,0
\ No newline at end of file
diff --git a/addons/im/static/src/audio/Ting.mp3 b/addons/im/static/src/audio/Ting.mp3
new file mode 100644
index 00000000000..6fd090a89ce
--- /dev/null
+++ b/addons/im/static/src/audio/Ting.mp3
diff --git a/addons/im/static/src/audio/Ting.ogg b/addons/im/static/src/audio/Ting.ogg
new file mode 100644
index 00000000000..8d17ea85bd3
--- /dev/null
+++ b/addons/im/static/src/audio/Ting.ogg
diff --git a/addons/im/static/src/audio/purr.mp3 b/addons/im/static/src/audio/purr.mp3
new file mode 100644
index 00000000000..849d303c3b1
--- /dev/null
+++ b/addons/im/static/src/audio/purr.mp3
diff --git a/addons/im/static/src/audio/purr.ogg b/addons/im/static/src/audio/purr.ogg
new file mode 100644
index 00000000000..2ddc77537f1
--- /dev/null
+++ b/addons/im/static/src/audio/purr.ogg
diff --git a/addons/im/static/src/css/im.css b/addons/im/static/src/css/im.css
new file mode 100644
index 00000000000..2f3e7dd58bb
--- /dev/null
+++ b/addons/im/static/src/css/im.css
@@ -0,0 +1,258 @@
+
+.openerp .oe_im {
+    position: fixed;
+    background-color: #E8EBEF;
+    width: 220px;
+    border-left: 1px solid #AEB9BD;
+}
+
+/* button */
+
+.openerp .oe_topbar_imbutton {
+    cursor: pointer;
+}
+
+/* search stuff */
+.openerp .oe_im_frame_header {
+    position: relative;
+    background: #dedede;
+    background: -moz-linear-gradient(#fcfcfc, #dedede);
+    background: -webkit-gradient(linear, left top, left bottom, from(#fcfcfc), to(#dedede));
+    border-bottom: 1px solid border-color !important;
+    padding: 5px;
+}
+.openerp .oe_im_frame_header .oe_im_searchbox {
+    width: 168px;
+    padding: 1px 21px 1px 19px;
+    font-size: 13px;
+    -moz-border-radius: 13px;
+    -webkit-border-radius: 13px;
+    border-radius: 13px;
+}
+.openerp .oe_im_frame_header .oe_im_search_icon {
+    position: absolute;
+    color: #888;
+    top: 2px;
+    left: 9px;
+    font-size: 28px;
+    font-family: "entypoRegular" !important;
+    font-weight: 300 !important;
+}
+.openerp .oe_im_frame_header .oe_im_search_clear {
+    display: none;
+    position: absolute;
+    right: 11px;
+    top: 4px;
+    font-size: 26px;
+    color: #b6b6b6;
+    cursor: pointer;
+}
+.openerp .oe_im_frame_header .oe_im_search_clear:hover {
+    color: #888;
+}
+
+/* users */
+
+.openerp .oe_im_users {
+    padding-bottom: 38px;
+}
+.openerp .oe_im_user {
+    position: relative;
+    padding: 2px 6px;
+    cursor: pointer;
+    font-size: 13px;
+    margin-bottom: 3px;
+}
+.openerp .oe_im_user:hover {
+  background: lightGrey;
+}
+.openerp .oe_im_user_clip {
+    display: inline-block;
+    width: 26px;
+    height: 26px;
+    margin-right: 4px;
+    -moz-box-shadow: 0 0 2px 1px rgba(0,0,0,0.25);
+    -webkit-box-shadow: 0 0 2px 1px rgba(0, 0, 0, 0.25);
+    box-shadow: 0 0 2px 1px rgba(0, 0, 0, 0.25);
+}
+.openerp .oe_im_user_avatar {
+    width: 26px;
+    height: auto;
+}
+.openerp .oe_im_user_name {
+    width: 162px;
+    line-height: 26px;
+    padding-right: 15px;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+    overflow: hidden;
+    position: relative;
+}
+
+.openerp .oe_im_user_online {
+    display: none;
+    position: absolute;
+    top: 9.5px;
+    right: 11px;
+    width: 11px;
+    height: 11px;
+    vertical-align: middle;
+    border: 0;
+}
+
+/* conversations */
+
+.openerp .oe_im_chatview {
+    position: fixed;
+    overflow: hidden;
+    bottom: 6px;
+    margin-right: 6px;
+    background: rgba(60, 60, 60, 0.8);
+    -moz-border-radius: 3px;
+    -webkit-border-radius: 3px;
+    border-radius: 3px;
+    -moz-box-shadow: 0 0 3px rgba(0,0,0,0.3), 0 2px 4px rgba(0,0,0,0.3);
+    -webkit-box-shadow: 0 0 3px rgba(0, 0, 0, 0.3), 0 2px 4px rgba(0, 0, 0, 0.3);
+    box-shadow: 0 0 3px rgba(0, 0, 0, 0.3), 0 2px 4px rgba(0, 0, 0, 0.3);
+    width: 240px;
+}
+.openerp .oe_im_chatview .oe_im_chatview_disconnected {
+    display:none;
+    z-index: 100;
+    width: 100%;
+    background: #E8EBEF;
+    padding: 5px;
+    font-size: 11px;
+    color: #999;
+    line-height: 14px;
+    height: 28px;
+    overflow: hidden;
+}
+.openerp .oe_im_chatview.oe_im_chatview_disconnected_status .oe_im_chatview_disconnected {
+    display: block;
+}
+.openerp .oe_im_chatview .oe_im_chatview_header {
+    padding: 3px 6px 2px;
+    background: #DEDEDE;
+    background: -moz-linear-gradient(#FCFCFC, #DEDEDE);
+    background: -webkit-gradient(linear, left top, left bottom, from(#FCFCFC), to(#DEDEDE));
+    -moz-border-radius: 3px 3px 0 0;
+    -webkit-border-radius: 3px 3px 0 0;
+    border-radius: 3px 3px 0 0;
+    border-bottom: 1px solid #AEB9BD;
+    cursor: pointer;
+}
+.openerp .oe_im_chatview .oe_im_chatview_close {
+    padding: 0;
+    cursor: pointer;
+    background: transparent;
+    border: 0;
+    -webkit-appearance: none;
+    font-size: 18px;
+    line-height: 16px;
+    float: right;
+    font-weight: bold;
+    color: black;
+    text-shadow: 0 1px 0 white;
+    opacity: 0.2;
+}
+.openerp .oe_im_chatview .oe_im_chatview_content {
+    overflow: auto;
+    height: 287px;
+}
+.openerp .oe_im_chatview.oe_im_chatview_disconnected_status .oe_im_chatview_content {
+    height: 249px;
+}
+.openerp .oe_im_chatview .oe_im_chatview_footer {
+    position: relative;
+    padding: 3px;
+    border-top: 1px solid #AEB9BD;
+    background: #DEDEDE;
+    background: -moz-linear-gradient(#FCFCFC, #DEDEDE);
+    background: -webkit-gradient(linear, left top, left bottom, from(#FCFCFC), to(#DEDEDE));
+    -moz-border-radius: 0 0 3px 3px;
+    -webkit-border-radius: 0 0 3px 3px;
+    border-radius: 0 0 3px 3px;
+}
+.openerp .oe_im_chatview .oe_im_chatview_input {
+    width: 222px;
+    font-family: Lato, Helvetica, sans-serif;
+    font-size: 13px;
+    color: #333;
+    padding: 1px 5px;
+    border: 1px solid #AEB9BD;
+    -moz-border-radius: 3px;
+    -webkit-border-radius: 3px;
+    border-radius: 3px;
+    -moz-box-shadow: inset 0 1px 4px rgba(0,0,0,0.2);
+    -webkit-box-shadow: inset 0 1px 4px rgba(0, 0, 0, 0.2);
+    box-shadow: inset 0 1px 4px rgba(0, 0, 0, 0.2);
+}
+.openerp .oe_im_chatview .oe_im_chatview_bubble {
+    background: white;
+    position: relative;
+    padding: 3px;
+    margin: 3px;
+    -moz-border-radius: 3px;
+    -webkit-border-radius: 3px;
+    border-radius: 3px;
+}
+.openerp .oe_im_chatview .oe_im_chatview_clip {
+    position: relative;
+    float: left;
+    width: 26px;
+    height: 26px;
+    margin-right: 4px;
+    -moz-box-shadow: 0 0 2px 1px rgba(0,0,0,0.25);
+    -webkit-box-shadow: 0 0 2px 1px rgba(0, 0, 0, 0.25);
+    box-shadow: 0 0 2px 1px rgba(0, 0, 0, 0.25);
+}
+.openerp .oe_im_chatview .oe_im_chatview_avatar {
+    float: left;
+    width: 26px;
+    height: auto;
+    clip: rect(0, 26px, 26px, 0);
+    max-width: 100%;
+    width: auto 9;
+    height: auto;
+    vertical-align: middle;
+    border: 0;
+    -ms-interpolation-mode: bicubic;
+}
+.openerp .oe_im_chatview .oe_im_chatview_time {
+    position: absolute;
+    right: 0px;
+    top: 0px;
+    margin: 3px;
+    text-align: right;
+    line-height: 13px;
+    font-size: 11px;
+    color: #999;
+    width: 60px;
+    overflow: hidden;
+}
+.openerp .oe_im_chatview .oe_im_chatview_from {
+    margin: 0 0 2px 0;
+    line-height: 14px;
+    font-weight: bold;
+    font-size: 12px;
+    width: 140px;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+    overflow: hidden;
+    color: #3A87AD;
+}
+.openerp .oe_im_chatview .oe_im_chatview_bubble_list {
+}
+.openerp .oe_im_chatview .oe_im_chatview_bubble_item {
+    margin: 0 0 2px 30px;
+    line-height: 14px;
+    word-wrap: break-word;
+}
+
+.openerp .oe_im_chatview_online {
+    display: none;
+    margin-top: -4px;
+    width: 11px;
+    height: 11px;
+}
diff --git a/addons/im/static/src/img/avatar/avatar.jpeg b/addons/im/static/src/img/avatar/avatar.jpeg
new file mode 100644
index 00000000000..7168794022e
--- /dev/null
+++ b/addons/im/static/src/img/avatar/avatar.jpeg
diff --git a/addons/im/static/src/img/button-gloss.png b/addons/im/static/src/img/button-gloss.png
new file mode 100755
index 00000000000..6f3957702fe
--- /dev/null
+++ b/addons/im/static/src/img/button-gloss.png
diff --git a/addons/im/static/src/img/glyphicons-halflings-white.png b/addons/im/static/src/img/glyphicons-halflings-white.png
new file mode 100755
index 00000000000..3bf6484a29d
--- /dev/null
+++ b/addons/im/static/src/img/glyphicons-halflings-white.png
diff --git a/addons/im/static/src/img/glyphicons-halflings.png b/addons/im/static/src/img/glyphicons-halflings.png
new file mode 100755
index 00000000000..a9969993201
--- /dev/null
+++ b/addons/im/static/src/img/glyphicons-halflings.png
diff --git a/addons/im/static/src/img/green.png b/addons/im/static/src/img/green.png
new file mode 100644
index 00000000000..01fb373c251
--- /dev/null
+++ b/addons/im/static/src/img/green.png
diff --git a/addons/im/static/src/img/icon.png b/addons/im/static/src/img/icon.png
new file mode 100644
index 00000000000..07d2503ce4e
--- /dev/null
+++ b/addons/im/static/src/img/icon.png
diff --git a/addons/im/static/src/img/logo.png b/addons/im/static/src/img/logo.png
new file mode 100644
index 00000000000..aca5f4c60d8
--- /dev/null
+++ b/addons/im/static/src/img/logo.png
diff --git a/addons/im/static/src/img/wood.png b/addons/im/static/src/img/wood.png
new file mode 100644
index 00000000000..22f2450d3ad
--- /dev/null
+++ b/addons/im/static/src/img/wood.png
diff --git a/addons/im/static/src/js/im.js b/addons/im/static/src/js/im.js
new file mode 100644
index 00000000000..547ee2c3026
--- /dev/null
+++ b/addons/im/static/src/js/im.js
@@ -0,0 +1,461 @@
+
+openerp.im = function(instance) {
+
+    var USERS_LIMIT = 20;
+    var ERROR_DELAY = 5000;
+
+    var _t = instance.web._t,
+       _lt = instance.web._lt;
+    var QWeb = instance.web.qweb;
+
+    instance.web.UserMenu.include({
+        do_update: function(){
+            var self = this;
+            this.update_promise.then(function() {
+                var im = new instance.im.InstantMessaging(self);
+                im.appendTo(instance.client.$el);
+                var button = new instance.im.ImTopButton(this);
+                button.on("clicked", im, im.switch_display);
+                button.appendTo(instance.webclient.$el.find('.oe_systray'));
+            });
+            return this._super.apply(this, arguments);
+        },
+    });
+
+    instance.im.ImTopButton = instance.web.Widget.extend({
+        template:'ImTopButton',
+        events: {
+            "click": "clicked",
+        },
+        clicked: function() {
+            this.trigger("clicked");
+        },
+    });
+
+    instance.im.InstantMessaging = instance.web.Widget.extend({
+        template: "InstantMessaging",
+        events: {
+            "keydown .oe_im_searchbox": "input_change",
+            "keyup .oe_im_searchbox": "input_change",
+            "change .oe_im_searchbox": "input_change",
+        },
+        init: function(parent) {
+            this._super(parent);
+            this.shown = false;
+            this.set("right_offset", 0);
+            this.set("current_search", "");
+            this.users = [];
+            this.c_manager = new instance.im.ConversationManager(this);
+            this.on("change:right_offset", this.c_manager, _.bind(function() {
+                this.c_manager.set("right_offset", this.get("right_offset"));
+            }, this));
+            this.user_search_dm = new instance.web.DropMisordered();
+        },
+        start: function() {
+            this.$el.css("right", -this.$el.outerWidth());
+            $(window).scroll(_.bind(this.calc_box, this));
+            $(window).resize(_.bind(this.calc_box, this));
+            this.calc_box();
+
+            this.on("change:current_search", this, this.search_changed);
+            this.search_changed();
+
+            var self = this;
+
+            return this.c_manager.start_polling();
+        },
+        calc_box: function() {
+            var $topbar = instance.client.$(".oe_topbar");
+            var top = $topbar.offset().top + $topbar.height();
+            top = Math.max(top - $(window).scrollTop(), 0);
+            this.$el.css("top", top);
+            this.$el.css("bottom", 0);
+        },
+        input_change: function() {
+            this.set("current_search", this.$(".oe_im_searchbox").val());
+        },
+        search_changed: function(e) {
+            var users = new instance.web.Model("im.user");
+            var self = this;
+            return this.user_search_dm.add(users.call("search_users", 
+                        [[["name", "ilike", this.get("current_search")], ["id", "<>", instance.session.uid]],
+                        ["name", "user", "uuid", "im_status"], USERS_LIMIT], {context:new instance.web.CompoundContext()})).then(function(result) {
+                self.c_manager.add_to_user_cache(result);
+                self.$(".oe_im_input").val("");
+                var old_users = self.users;
+                self.users = [];
+                _.each(result, function(user) {
+                    var widget = new instance.im.UserWidget(self, self.c_manager.get_user(user.id));
+                    widget.appendTo(self.$(".oe_im_users"));
+                    widget.on("activate_user", self, self.activate_user);
+                    self.users.push(widget);
+                });
+                _.each(old_users, function(user) {
+                    user.destroy();
+                });
+            });
+        },
+        switch_display: function() {
+            var fct =  _.bind(function(place) {
+                this.set("right_offset", place + this.$el.outerWidth());
+            }, this);
+            var opt = {
+                step: fct,
+            };
+            if (this.shown) {
+                this.$el.animate({
+                    right: -this.$el.outerWidth(),
+                }, opt);
+            } else {
+                if (! this.c_manager.get_activated()) {
+                    this.do_warn("Instant Messaging is not activated on this server.", "");
+                    return;
+                }
+                this.$el.animate({
+                    right: 0,
+                }, opt);
+            }
+            this.shown = ! this.shown;
+        },
+        activate_user: function(user) {
+            this.c_manager.activate_user(user, true);
+        },
+    });
+
+    instance.im.UserWidget = instance.web.Widget.extend({
+        "template": "UserWidget",
+        events: {
+            "click": "activate_user",
+        },
+        init: function(parent, user) {
+            this._super(parent);
+            this.user = user;
+            this.user.add_watcher();
+        },
+        start: function() {
+            var change_status = function() {
+                this.$(".oe_im_user_online").toggle(this.user.get("im_status") === true);
+            };
+            this.user.on("change:im_status", this, change_status);
+            change_status.call(this);
+        },
+        activate_user: function() {
+            this.trigger("activate_user", this.user);
+        },
+        destroy: function() {
+            this.user.remove_watcher();
+            this._super();
+        },
+    });
+
+    instance.im.ImUser = instance.web.Class.extend(instance.web.PropertiesMixin, {
+        init: function(parent, user_rec) {
+            instance.web.PropertiesMixin.init.call(this, parent);
+            user_rec.image_url = instance.session.url("/im/static/src/img/avatar/avatar.jpeg");
+            if (user_rec.user)
+                user_rec.image_url = instance.session.url('/web/binary/image', {model:'res.users', field: 'image_small', id: user_rec.user[0]});
+            this.set(user_rec);
+            this.set("watcher_count", 0);
+            this.on("change:watcher_count", this, function() {
+                if (this.get("watcher_count") === 0)
+                    this.destroy();
+            });
+        },
+        destroy: function() {
+            this.trigger("destroyed");
+            instance.web.PropertiesMixin.destroy.call(this);
+        },
+        add_watcher: function() {
+            this.set("watcher_count", this.get("watcher_count") + 1);
+        },
+        remove_watcher: function() {
+            this.set("watcher_count", this.get("watcher_count") - 1);
+        },
+    });
+
+    instance.im.ConversationManager = instance.web.Controller.extend({
+        init: function(parent) {
+            this._super(parent);
+            this.set("right_offset", 0);
+            this.conversations = [];
+            this.users = {};
+            this.on("change:right_offset", this, this.calc_positions);
+            this.set("window_focus", true);
+            this.set("waiting_messages", 0);
+            this.focus_hdl = _.bind(function() {
+                this.set("window_focus", true);
+            }, this);
+            $(window).bind("focus", this.focus_hdl);
+            this.blur_hdl = _.bind(function() {
+                this.set("window_focus", false);
+            }, this);
+            $(window).bind("blur", this.blur_hdl);
+            this.on("change:window_focus", this, this.window_focus_change);
+            this.window_focus_change();
+            this.on("change:waiting_messages", this, this.messages_change);
+            this.messages_change();
+            this.create_ting();
+            this.activated = false;
+            this.users_cache = {};
+            this.last = null;
+            this.unload_event_handler = _.bind(this.unload, this);
+        },
+        start_polling: function() {
+            var self = this;
+            return new instance.web.Model("im.user").call("get_by_user_id", [instance.session.uid]).then(function(my_id) {
+                self.my_id = my_id["id"];
+                return self.ensure_users([self.my_id]).then(function() {
+                    var me = self.users_cache[self.my_id];
+                    delete self.users_cache[self.my_id];
+                    self.me = me;
+                    self.rpc("/longpolling/im/activated", {}, {shadow: true}).then(function(activated) {
+                        if (activated) {
+                            self.activated = true;
+                            $(window).on("unload", self.unload_event_handler);
+                            self.poll();
+                        }
+                    }, function(a, e) {
+                        e.preventDefault();
+                    });
+                });
+            });
+        },
+        unload: function() {
+            return new instance.web.Model("im.user").call("im_disconnect", [], {context: new instance.web.CompoundContext()});
+        },
+        ensure_users: function(user_ids) {
+            var no_cache = {};
+            _.each(user_ids, function(el) {
+                if (! this.users_cache[el])
+                    no_cache[el] = el;
+            }, this);
+            var self = this;
+            if (_.size(no_cache) === 0)
+                return $.when();
+            else
+                return new instance.web.Model("im.user").call("read", [_.values(no_cache), ["name", "user", "uuid", "im_status"]],
+                        {context: new instance.web.CompoundContext()}).then(function(users) {
+                    self.add_to_user_cache(users);
+                });
+        },
+        add_to_user_cache: function(user_recs) {
+            _.each(user_recs, function(user_rec) {
+                if (! this.users_cache[user_rec.id]) {
+                    var user = new instance.im.ImUser(this, user_rec);
+                    this.users_cache[user_rec.id] = user;
+                    user.on("destroyed", this, function() {
+                        delete this.users_cache[user_rec.id];
+                    });
+                }
+            }, this);
+        },
+        get_user: function(user_id) {
+            return this.users_cache[user_id];
+        },
+        poll: function() {
+            var self = this;
+            var user_ids = _.map(this.users_cache, function(el) {
+                return el.get("id");
+            });
+            this.rpc("/longpolling/im/poll", {
+                last: this.last,
+                users_watch: user_ids,
+                context: instance.web.pyeval.eval('context', {}),
+            }, {shadow: true}).then(function(result) {
+                _.each(result.users_status, function(el) {
+                    if (self.get_user(el.id))
+                        self.get_user(el.id).set(el);
+                });
+                self.last = result.last;
+                var user_ids = _.pluck(_.pluck(result.res, "from_id"), 0);
+                self.ensure_users(user_ids).then(function() {
+                    _.each(result.res, function(mes) {
+                        var user = self.get_user(mes.from_id[0]);
+                        self.received_message(mes, user);
+                    });
+                    self.poll();
+                });
+            }, function(unused, e) {
+                e.preventDefault();
+                setTimeout(_.bind(self.poll, self), ERROR_DELAY);
+            });
+        },
+        get_activated: function() {
+            return this.activated;
+        },
+        create_ting: function() {
+            var kitten = jQuery.param !== undefined && jQuery.deparam(jQuery.param.querystring()).kitten !== undefined;
+            this.ting = new Audio(instance.webclient.session.origin + "/im/static/src/audio/" + (kitten ? "purr" : "Ting") +
+                (new Audio().canPlayType("audio/ogg; codecs=vorbis") ? ".ogg" : ".mp3"));
+        },
+        window_focus_change: function() {
+            if (this.get("window_focus")) {
+                this.set("waiting_messages", 0);
+            }
+        },
+        messages_change: function() {
+            if (! instance.webclient.set_title_part)
+                return;
+            instance.webclient.set_title_part("aa_im_messages", this.get("waiting_messages") === 0 ? undefined :
+                _.str.sprintf(_t("%d Messages"), this.get("waiting_messages")));
+        },
+        activate_user: function(user, focus) {
+            var conv = this.users[user.get('id')];
+            if (! conv) {
+                conv = new instance.im.Conversation(this, user, this.me);
+                conv.appendTo(instance.client.$el);
+                conv.on("destroyed", this, function() {
+                    this.conversations = _.without(this.conversations, conv);
+                    delete this.users[conv.user.get('id')];
+                    this.calc_positions();
+                });
+                this.conversations.push(conv);
+                this.users[user.get('id')] = conv;
+                this.calc_positions();
+            }
+            if (focus)
+                conv.focus();
+            return conv;
+        },
+        received_message: function(message, user) {
+            if (! this.get("window_focus")) {
+                this.set("waiting_messages", this.get("waiting_messages") + 1);
+                this.ting.play();
+                this.create_ting();
+            }
+            var conv = this.activate_user(user);
+            conv.received_message(message);
+        },
+        calc_positions: function() {
+            var current = this.get("right_offset");
+            _.each(_.range(this.conversations.length), function(i) {
+                this.conversations[i].set("right_position", current);
+                current += this.conversations[i].$el.outerWidth(true);
+            }, this);
+        },
+        destroy: function() {
+            $(window).off("unload", this.unload_event_handler);
+            $(window).unbind("blur", this.blur_hdl);
+            $(window).unbind("focus", this.focus_hdl);
+            this._super();
+        },
+    });
+
+    instance.im.Conversation = instance.web.Widget.extend({
+        "template": "Conversation",
+        events: {
+            "keydown input": "send_message",
+            "click .oe_im_chatview_close": "destroy",
+            "click .oe_im_chatview_header": "show_hide",
+        },
+        init: function(parent, user, me) {
+            this._super(parent);
+            this.me = me;
+            this.user = user;
+            this.user.add_watcher();
+            this.set("right_position", 0);
+            this.shown = true;
+            this.set("pending", 0);
+        },
+        start: function() {
+            var change_status = function() {
+                this.$el.toggleClass("oe_im_chatview_disconnected_status", this.user.get("im_status") === false);
+                this.$(".oe_im_chatview_online").toggle(this.user.get("im_status") === true);
+                this._go_bottom();
+            };
+            this.user.on("change:im_status", this, change_status);
+            change_status.call(this);
+
+            this.on("change:right_position", this, this.calc_pos);
+            this.full_height = this.$el.height();
+            this.calc_pos();
+            this.on("change:pending", this, _.bind(function() {
+                if (this.get("pending") === 0) {
+                    this.$(".oe_im_chatview_nbr_messages").text("");
+                } else {
+                    this.$(".oe_im_chatview_nbr_messages").text("(" + this.get("pending") + ")");
+                }
+            }, this));
+        },
+        show_hide: function() {
+            if (this.shown) {
+                this.$el.animate({
+                    height: this.$(".oe_im_chatview_header").outerHeight(),
+                });
+            } else {
+                this.$el.animate({
+                    height: this.full_height,
+                });
+            }
+            this.shown = ! this.shown;
+            if (this.shown) {
+                this.set("pending", 0);
+            }
+        },
+        calc_pos: function() {
+            this.$el.css("right", this.get("right_position"));
+        },
+        received_message: function(message) {
+            if (this.shown) {
+                this.set("pending", 0);
+            } else {
+                this.set("pending", this.get("pending") + 1);
+            }
+            this._add_bubble(this.user, message.message, message.date);
+        },
+        send_message: function(e) {
+            if(e && e.which !== 13) {
+                return;
+            }
+            var mes = this.$("input").val();
+            this.$("input").val("");
+            var send_it = _.bind(function() {
+                var model = new instance.web.Model("im.message");
+                return model.call("post", [mes, this.user.get('id')],
+                    {context: new instance.web.CompoundContext()});
+            }, this);
+            var tries = 0;
+            send_it().then(_.bind(function() {
+                this._add_bubble(this.me, mes, instance.web.datetime_to_str(new Date()));
+            }, this), function(error, e) {
+                e.preventDefault();
+                tries += 1;
+                if (tries < 3)
+                    return send_it();
+            });
+        },
+        _add_bubble: function(user, item, date) {
+            var items = [item];
+            if (user === this.last_user) {
+                this.last_bubble.remove();
+                items = this.last_items.concat(items);
+            }
+            this.last_user = user;
+            this.last_items = items;
+            date = instance.web.str_to_datetime(date);
+            var now = new Date();
+            var diff = now - date;
+            if (diff > (1000 * 60 * 60 * 24)) {
+                date = $.timeago(date);
+            } else {
+                date = date.toString(Date.CultureInfo.formatPatterns.shortTime);
+            }
+            
+            this.last_bubble = $(QWeb.render("Conversation.bubble", {"items": items, "user": user, "time": date}));
+            $(this.$(".oe_im_chatview_content").children()[0]).append(this.last_bubble);
+            this._go_bottom();
+        },
+        _go_bottom: function() {
+            this.$(".oe_im_chatview_content").scrollTop($(this.$(".oe_im_chatview_content").children()[0]).height());
+        },
+        focus: function() {
+            this.$(".oe_im_chatview_input").focus();
+        },
+        destroy: function() {
+            this.user.remove_watcher();
+            this.trigger("destroyed");
+            return this._super();
+        },
+    });
+
+}
\ No newline at end of file
diff --git a/addons/im/static/src/xml/im.xml b/addons/im/static/src/xml/im.xml
new file mode 100644
index 00000000000..795d1b3e698
--- /dev/null
+++ b/addons/im/static/src/xml/im.xml
@@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- vim:fdl=1:
+-->
+<templates xml:space="preserve">
+    <t t-name="InstantMessaging">
+        <div class="oe_im">
+            <div class="oe_im_frame_header">
+                <span class="oe_e oe_im_search_icon">ô</span>
+                <input class="oe_im_searchbox" t-att-placeholder="_t('Search users...')"/>
+                <span class="oe_e oe_im_search_clear">[</span>
+            </div>
+            <div class="oe_im_users"></div>
+            <div class="oe_im_content"></div>
+        </div>
+    </t>
+    <t t-name="ImTopButton">
+        <div t-att-title='_t("Display Instant Messaging")' class="oe_topbar_item oe_topbar_imbutton">
+            <span class="oe_e">+</span>
+        </div>
+    </t>
+    <t t-name="UserWidget">
+        <div class="oe_im_user">
+            <span class="oe_im_user_clip">
+                <img t-att-src='widget.user.get("image_url")' class="oe_im_user_avatar"/>
+            </span>
+            <span class="oe_im_user_name"><t t-esc="widget.user.get('name')"/></span>
+            <img t-att-src="_s +'/im/static/src/img/green.png'" class="oe_im_user_online"/>
+        </div>
+    </t>
+    <t t-name="Conversation">
+        <div class="oe_im_chatview">
+            <div class="oe_im_chatview_header">
+                <img t-att-src="_s +'/im/static/src/img/green.png'" class="oe_im_chatview_online"/>
+                <t t-esc="widget.user.get('name') || 'Anonymous'"/>
+                <scan class="oe_im_chatview_nbr_messages" />
+                <button class="oe_im_chatview_close">×</button>
+            </div>
+            <div class="oe_im_chatview_disconnected">
+                <t t-esc='_.str.sprintf(_t("%s is offline. He/She will receive your messages on his/her next connection."), widget.user.get("name") || "Anonymous")'/>
+            </div>
+            <div class="oe_im_chatview_content">
+                <div></div>
+            </div>
+            <div class="oe_im_chatview_footer">
+                <input class="oe_im_chatview_input" t-att-placeholder="_t('Say something...')" />
+            </div>
+        </div>
+    </t>
+    <t t-name="Conversation.bubble">
+        <div class="oe_im_chatview_bubble">
+            <div class="oe_im_chatview_clip">
+                <img class="oe_im_chatview_avatar" t-att-src='user.get("image_url")'/>
+            </div>
+            <div class="oe_im_chatview_from"><t t-esc="user.get('name') || 'Anonymous'"/></div>
+            <div class="oe_im_chatview_bubble_list">
+                <t t-foreach="items" t-as="item">
+                    <div class="oe_im_chatview_bubble_item"><t t-esc="item"/></div>
+                </t>
+            </div>
+            <div class="oe_im_chatview_time"><t t-esc="time"/></div>
+        </div>
+    </t>
+</templates>
\ No newline at end of file
diff --git a/addons/im_livechat/__init__.py b/addons/im_livechat/__init__.py
new file mode 100644
index 00000000000..2825a75179c
--- /dev/null
+++ b/addons/im_livechat/__init__.py
@@ -0,0 +1,2 @@
+
+import im_livechat
diff --git a/addons/im_livechat/__openerp__.py b/addons/im_livechat/__openerp__.py
new file mode 100644
index 00000000000..8b9ea3924d5
--- /dev/null
+++ b/addons/im_livechat/__openerp__.py
@@ -0,0 +1,29 @@
+{
+    'name' : 'Live Support',
+    'version': '1.0',
+    'summary': 'Live Chat with Visitors/Customers',
+    'category': 'Tools',
+    'complexity': 'easy',
+    'description':
+        """
+Live Chat Support
+=================
+
+Allow to drop instant messaging widgets on any web page that will communicate
+with the current server and dispatch visitors request amongst several live
+chat operators.
+
+        """,
+    'data': [
+        "security/im_livechat_security.xml",
+        "security/ir.model.access.csv",
+        "im_livechat_view.xml",
+    ],
+    'demo': [
+        "im_livechat_demo.xml",
+    ],
+    'depends' : ["im", "mail", "portal_anonymous"],
+    'installable': True,
+    'auto_install': False,
+    'application': True,
+}
diff --git a/addons/im_livechat/im_livechat.py b/addons/im_livechat/im_livechat.py
new file mode 100644
index 00000000000..1ffb422fe6a
--- /dev/null
+++ b/addons/im_livechat/im_livechat.py
@@ -0,0 +1,245 @@
+# -*- coding: utf-8 -*-
+##############################################################################
+#
+#    OpenERP, Open Source Management Solution
+#    Copyright (C) 2004-2010 Tiny SPRL (<http://tiny.be>).
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU Affero General Public License for more details.
+#
+#    You should have received a copy of the GNU Affero General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+##############################################################################
+
+import openerp
+import openerp.addons.im.im as im
+import json
+import random
+import jinja2
+from openerp.osv import osv, fields
+from openerp import tools
+
+env = jinja2.Environment(
+    loader=jinja2.PackageLoader('openerp.addons.im_livechat', "."),
+    autoescape=False
+)
+env.filters["json"] = json.dumps
+
+class LiveChatController(openerp.addons.web.http.Controller):
+    _cp_path = '/im_livechat'
+
+    @openerp.addons.web.http.httprequest
+    def loader(self, req, **kwargs):
+        p = json.loads(kwargs["p"])
+        db = p["db"]
+        channel = p["channel"]
+        user_name = p.get("user_name", None)
+        req.session._db = db
+        req.session._uid = None
+        req.session._login = "anonymous"
+        req.session._password = "anonymous"
+        info = req.session.model('im_livechat.channel').get_info_for_chat_src(channel)
+        info["db"] = db
+        info["channel"] = channel
+        info["userName"] = user_name
+        return req.make_response(env.get_template("loader.js").render(info),
+             headers=[('Content-Type', "text/javascript")])
+
+    @openerp.addons.web.http.httprequest
+    def web_page(self, req, **kwargs):
+        p = json.loads(kwargs["p"])
+        db = p["db"]
+        channel = p["channel"]
+        req.session._db = db
+        req.session._uid = None
+        req.session._login = "anonymous"
+        req.session._password = "anonymous"
+        script = req.session.model('im_livechat.channel').read(channel, ["script"])["script"]
+        info = req.session.model('im_livechat.channel').get_info_for_chat_src(channel)
+        info["script"] = script
+        return req.make_response(env.get_template("web_page.html").render(info),
+             headers=[('Content-Type', "text/html")])
+
+    @openerp.addons.web.http.jsonrequest
+    def available(self, req, db, channel):
+        req.session._db = db
+        req.session._uid = None
+        req.session._login = "anonymous"
+        req.session._password = "anonymous"
+        return req.session.model('im_livechat.channel').get_available_user(channel) > 0
+
+class im_livechat_channel(osv.osv):
+    _name = 'im_livechat.channel'
+
+    def _get_default_image(self, cr, uid, context=None):
+        image_path = openerp.modules.get_module_resource('im_livechat', 'static/src/img', 'default.png')
+        return tools.image_resize_image_big(open(image_path, 'rb').read().encode('base64'))
+    def _get_image(self, cr, uid, ids, name, args, context=None):
+        result = dict.fromkeys(ids, False)
+        for obj in self.browse(cr, uid, ids, context=context):
+            result[obj.id] = tools.image_get_resized_images(obj.image)
+        return result
+    def _set_image(self, cr, uid, id, name, value, args, context=None):
+        return self.write(cr, uid, [id], {'image': tools.image_resize_image_big(value)}, context=context)
+
+
+    def _are_you_inside(self, cr, uid, ids, name, arg, context=None):
+        res = {}
+        for record in self.browse(cr, uid, ids, context=context):
+            res[record.id] = False
+            for user in record.user_ids:
+                if user.id == uid:
+                    res[record.id] = True
+                    break
+        return res
+
+    def _script(self, cr, uid, ids, name, arg, context=None):
+        res = {}
+        for record in self.browse(cr, uid, ids, context=context):
+            res[record.id] = env.get_template("include.html").render({
+                "url": self.pool.get('ir.config_parameter').get_param(cr, uid, 'web.base.url'),
+                "parameters": {"db":cr.dbname, "channel":record.id},
+            })
+        return res
+
+    def _web_page(self, cr, uid, ids, name, arg, context=None):
+        res = {}
+        for record in self.browse(cr, uid, ids, context=context):
+            res[record.id] = self.pool.get('ir.config_parameter').get_param(cr, uid, 'web.base.url') + \
+                "/im_livechat/web_page?p=" + json.dumps({"db":cr.dbname, "channel":record.id})
+        return res
+
+    _columns = {
+        'name': fields.char(string="Channel Name", size=200, required=True),
+        'user_ids': fields.many2many('res.users', 'im_livechat_channel_im_user', 'channel_id', 'user_id', string="Users"),
+        'are_you_inside': fields.function(_are_you_inside, type='boolean', string='Are you inside the matrix?', store=False),
+        'script': fields.function(_script, type='text', string='Script', store=False),
+        'web_page': fields.function(_web_page, type='url', string='Web Page', store=False, size="200"),
+        'button_text': fields.char(string="Text of the Button", size=200),
+        'input_placeholder': fields.char(string="Chat Input Placeholder", size=200),
+        'default_message': fields.char(string="Welcome Message", size=200, help="This is an automated 'welcome' message that your visitor will see when they initiate a new chat session."),
+        # image: all image fields are base64 encoded and PIL-supported
+        'image': fields.binary("Photo",
+            help="This field holds the image used as photo for the group, limited to 1024x1024px."),
+        'image_medium': fields.function(_get_image, fnct_inv=_set_image,
+            string="Medium-sized photo", type="binary", multi="_get_image",
+            store={
+                'im_livechat.channel': (lambda self, cr, uid, ids, c={}: ids, ['image'], 10),
+            },
+            help="Medium-sized photo of the group. It is automatically "\
+                 "resized as a 128x128px image, with aspect ratio preserved. "\
+                 "Use this field in form views or some kanban views."),
+        'image_small': fields.function(_get_image, fnct_inv=_set_image,
+            string="Small-sized photo", type="binary", multi="_get_image",
+            store={
+                'im_livechat.channel': (lambda self, cr, uid, ids, c={}: ids, ['image'], 10),
+            },
+            help="Small-sized photo of the group. It is automatically "\
+                 "resized as a 64x64px image, with aspect ratio preserved. "\
+                 "Use this field anywhere a small image is required."),
+    }
+
+    def _default_user_ids(self, cr, uid, context=None):
+        return [(6, 0, [uid])]
+
+    _defaults = {
+        'button_text': "Have a Question? Chat with us.",
+        'input_placeholder': "How may I help you?",
+        'default_message': '',
+        'user_ids': _default_user_ids,
+        'image': _get_default_image,
+    }
+
+    def get_available_user(self, cr, uid, channel_id, context=None):
+        channel = self.browse(cr, openerp.SUPERUSER_ID, channel_id, context=context)
+        users = []
+        for user in channel.user_ids:
+            iuid = self.pool.get("im.user").get_by_user_id(cr, uid, user.id, context=context)["id"]
+            imuser = self.pool.get("im.user").browse(cr, uid, iuid, context=context)
+            if imuser.im_status:
+                users.append(imuser)
+        if len(users) == 0:
+            return False
+        return random.choice(users).id
+
+    def test_channel(self, cr, uid, channel, context=None):
+        if not channel:
+            return {}
+        return {
+            'url': self.browse(cr, uid, channel[0], context=context or {}).web_page,
+            'type': 'ir.actions.act_url'
+        }
+
+    def get_info_for_chat_src(self, cr, uid, channel, context=None):
+        url = self.pool.get('ir.config_parameter').get_param(cr, openerp.SUPERUSER_ID, 'web.base.url')
+        chan = self.browse(cr, uid, channel, context=context)
+        return {
+            "url": url,
+            'buttonText': chan.button_text,
+            'inputPlaceholder': chan.input_placeholder,
+            'defaultMessage': chan.default_message,
+            "channelName": chan.name,
+        }
+
+    def join(self, cr, uid, ids, context=None):
+        self.write(cr, uid, ids, {'user_ids': [(4, uid)]})
+        return True
+
+    def quit(self, cr, uid, ids, context=None):
+        self.write(cr, uid, ids, {'user_ids': [(3, uid)]})
+        return True
+
+
+class im_message(osv.osv):
+    _inherit = 'im.message'
+
+    def _support_member(self, cr, uid, ids, name, arg, context=None):
+        res = {}
+        for record in self.browse(cr, uid, ids, context=context):
+            res[record.id] = False
+            if record.to_id.user and record.from_id.user:
+                continue
+            elif record.to_id.user:
+                res[record.id] = record.to_id.user.id
+            elif record.from_id.user:
+                res[record.id] = record.from_id.user.id
+        return res
+
+    def _customer(self, cr, uid, ids, name, arg, context=None):
+        res = {}
+        for record in self.browse(cr, uid, ids, context=context):
+            res[record.id] = False
+            if record.to_id.uuid and record.from_id.uuid:
+                continue
+            elif record.to_id.uuid:
+                res[record.id] = record.to_id.id
+            elif record.from_id.uuid:
+                res[record.id] = record.from_id.id
+        return res
+
+    def _direction(self, cr, uid, ids, name, arg, context=None):
+        res = {}
+        for record in self.browse(cr, uid, ids, context=context):
+            res[record.id] = False
+            if not not record.to_id.user and not not record.from_id.user:
+                continue
+            elif not not record.to_id.user:
+                res[record.id] = "c2s"
+            elif not not record.from_id.user:
+                res[record.id] = "s2c"
+        return res
+
+    _columns = {
+        'support_member_id': fields.function(_support_member, type='many2one', relation='res.users', string='Support Member', store=True, select=True),
+        'customer_id': fields.function(_customer, type='many2one', relation='im.user', string='Customer', store=True, select=True),
+        'direction': fields.function(_direction, type="selection", selection=[("s2c", "Support Member to Customer"), ("c2s", "Customer to Support Member")],
+            string='Direction', store=False),
+    }
diff --git a/addons/im_livechat/im_livechat_demo.xml b/addons/im_livechat/im_livechat_demo.xml
new file mode 100644
index 00000000000..f199179fb50
--- /dev/null
+++ b/addons/im_livechat/im_livechat_demo.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0"?>
+<openerp>
+    <data>
+
+        <record id="channel_website" model="im_livechat.channel">
+            <field name="name">YourWebsite.com</field>
+            <field name="default_message">Hello, how may I help you?</field>
+        </record>
+
+        <record id="group_im_livechat" model="res.groups">
+            <field name="users" eval="[(4, ref('base.user_demo'))]"/>
+        </record>
+
+    </data>
+</openerp>
diff --git a/addons/im_livechat/im_livechat_view.xml b/addons/im_livechat/im_livechat_view.xml
new file mode 100644
index 00000000000..f684fd561fc
--- /dev/null
+++ b/addons/im_livechat/im_livechat_view.xml
@@ -0,0 +1,146 @@
+<?xml version="1.0"?>
+<openerp>
+    <data>
+        <menuitem id="im_livechat" name="Live Chat" parent="mail.mail_feeds_main" groups="group_im_livechat"/>
+
+        <record model="ir.actions.act_window" id="action_support_channels">
+            <field name="name">Live Chat Channels</field>
+            <field name="res_model">im_livechat.channel</field>
+            <field name="view_mode">kanban,form</field>
+            <field name="help" type="html">
+              <p class="oe_view_nocontent_create">
+                Click to define a new live chat channel.
+              </p><p>
+                You can create channels for each website on which you want
+                to integrate the live chat widget, allowing you website
+                visitors to talk in real time with your operators.
+              </p><p>
+                Each channel has it's own URL that you can send by email to
+                your customers in order to start chatting with you.
+              </p>
+            </field>
+        </record>
+        <menuitem name="Channels" parent="im_livechat" id="support_channels" action="action_support_channels" groups="group_im_livechat"/>
+
+
+        <record model="ir.ui.view" id="support_channel_kanban">
+            <field name="name">support_channel.kanban</field>
+            <field name="model">im_livechat.channel</field>
+            <field name="arch" type="xml">
+                <kanban>
+                    <field name="name"/>
+                    <field name="web_page"/>
+                    <field name="are_you_inside"/>
+                    <field name="user_ids"/>
+                    <templates>
+                        <t t-name="kanban-box">
+                            <div class="oe_group_image">
+                                <a type="open"><img t-att-src="kanban_image('im_livechat.channel', 'image_medium', record.id.value)" class="oe_group_photo"/></a>
+                            </div>
+                            <div class="oe_group_details">
+                                <h4><a type="open"><field name="name"/></a></h4>
+                                <div class="oe_kanban_footer_left">
+                                    <span>
+                                        <span class="oe_e">+</span> <t t-esc="(record.user_ids.raw_value || []).length"/>
+                                    </span>
+                                </div>
+                                <div class="oe_group_button">
+                                    <button t-if="record.are_you_inside.raw_value" name="quit" type="object" class="oe_group_join">Quit</button>
+                                    <button t-if="! record.are_you_inside.raw_value" name="join" type="object">Join</button>
+                                </div>
+                            </div>
+                        </t>
+                    </templates>
+                </kanban>
+            </field>
+        </record>
+
+
+        <record id="support_channel_form" model="ir.ui.view">
+            <field name="name">support_channel.form</field>
+            <field name="model">im_livechat.channel</field>
+            <field name="arch" type="xml">
+                <form string="Support Channels" version="7.0">
+                <sheet>
+                    <field name="image" widget='image' class="oe_avatar oe_left" options='{"preview_image": "image_medium"}'/>
+                    <div class="oe_title">
+                        <label for="name" class="oe_edit_only"/>
+                        <h1>
+                            <field name="name" placeholder="e.g. YourWebsite.com"/>
+                        </h1>
+                        <div>
+                            <button type="object" name="join" class="oe_highlight" string="Join Channel" attrs='{"invisible": [["are_you_inside", "=", True]]}'/>
+                            <button type="object" name="quit" string="Leave Channel" attrs='{"invisible": [["are_you_inside", "=", False]]}'/>
+                            <button type="object" name="test_channel" string="Test" attrs='{"invisible": [["web_page", "=", False]]}'/>
+                            <field name="are_you_inside" invisible="1"/>
+                        </div>
+                    </div>
+
+                    <group>
+                        <group string="Operators">
+                            <field name="user_ids" widget="many2many_kanban" nolabel="1" colspan="2">
+                                <kanban>
+                                    <field name="name"/>
+                                    <templates>
+                                        <t t-name="kanban-box">
+                                            <div>
+                                                <a t-if="! read_only_mode" type="delete" style="position: absolute; right: 0; padding: 4px; diplay: inline-block">X</a>
+                                                <div class="oe_group_details" style="min-height: 40px">
+                                                    <img t-att-src="kanban_image('res.users', 'image', record.id.value)"
+                                                        class="oe_avatar oe_kanban_avatar_smallbox" style="float:left; margin-right: 10px;"/>
+                                                    <h4><field name="name"/></h4>
+                                                </div>
+                                            </div>
+                                        </t>
+                                    </templates>
+                                </kanban>
+                            </field>
+                        </group>
+                        <group string="Options">
+                            <field name="button_text"/>
+                            <field name="input_placeholder"/>
+                            <field name="default_message" placeholder="e.g. Hello, how may I help you?"/>
+                        </group>
+                    </group>
+
+                    <div attrs='{"invisible": [["web_page", "=", False]]}'>
+                        <separator string="How to use the Live Chat widget?"/>
+                        <p>
+                            Copy and paste this code into your website, within the &amp;lt;head&amp;gt; tag:
+                        </p>
+                        <field name="script" readonly="1" class="oe_tag"/>
+                        <p>
+                            or copy this url and send it by email to your customers or suppliers:
+                        </p>
+                        <field name="web_page" readonly="1" class="oe_tag"/>
+                    </div>
+
+                </sheet>
+                </form>
+            </field>
+        </record>
+
+        <record model="ir.actions.act_window" id="action_history">
+            <field name="name">History</field>
+            <field name="res_model">im.message</field>
+            <field name="view_mode">list</field>
+            <field name="domain">["|", ('to_id.user', '=', None), ('from_id.user', '=', None)]</field>
+        </record>
+        <menuitem name="History" parent="im_livechat" id="history" action="action_history" groups="group_im_livechat_manager"/>
+
+        <record id="im_message_form" model="ir.ui.view">
+            <field name="name">im.message.tree</field>
+            <field name="model">im.message</field>
+            <field name="arch" type="xml">
+                <tree string="History">
+                    <field name="date"/>
+                    <field name="support_member_id"/>
+                    <field name="customer_id"/>
+                    <field name="direction"/>
+                    <field name="message"/>
+                </tree>
+            </field>
+        </record>
+
+    </data>
+</openerp>
diff --git a/addons/im_livechat/include.html b/addons/im_livechat/include.html
new file mode 100644
index 00000000000..55de6212361
--- /dev/null
+++ b/addons/im_livechat/include.html
@@ -0,0 +1,2 @@
+<script type="text/javascript" src="{{url}}/im_livechat/static/ext/static/js/require.js"></script>
+<script type="text/javascript" src='{{url}}/im_livechat/loader?p={{parameters | json | escape}}'></script>
\ No newline at end of file
diff --git a/addons/im_livechat/loader.js b/addons/im_livechat/loader.js
new file mode 100644
index 00000000000..669591b410f
--- /dev/null
+++ b/addons/im_livechat/loader.js
@@ -0,0 +1,24 @@
+
+require.config({
+    context: "oelivesupport",
+    baseUrl: {{url | json}} + "/im_livechat/static/ext/static/js",
+    shim: {
+        underscore: {
+            init: function() {
+                return _.noConflict();
+            },
+        },
+        "jquery.achtung": {
+            deps: ['jquery'],
+        },
+    },
+})(["livesupport", "jquery"], function(livesupport, jQuery) {
+    jQuery.noConflict();
+    livesupport.main({{url | json}}, {{db | json}}, "anonymous", "anonymous", {{channel | json}}, {
+        buttonText: {{buttonText | json}},
+        inputPlaceholder: {{inputPlaceholder | json}},
+        defaultMessage: {{(defaultMessage or None) | json}},
+        auto: window.oe_im_livechat_auto || false,
+        userName: {{userName | json}} || undefined,
+    });
+});
diff --git a/addons/im_livechat/security/im_livechat_security.xml b/addons/im_livechat/security/im_livechat_security.xml
new file mode 100644
index 00000000000..5ad020a8a78
--- /dev/null
+++ b/addons/im_livechat/security/im_livechat_security.xml
@@ -0,0 +1,36 @@
+<?xml version="1.0"?>
+<openerp>
+    <data>
+
+        <record id="module_category_im_livechat" model="ir.module.category">
+            <field name="name">Live Support</field>
+            <field name="sequence" eval="20" />
+        </record>
+
+        <record id="group_im_livechat" model="res.groups">
+            <field name="name">User</field>
+            <field name="category_id" ref="module_category_im_livechat"/>
+            <field name="comment">The user will be able to join support channels.</field>
+        </record>
+
+        <record id="group_im_livechat_manager" model="res.groups">
+            <field name="name">Manager</field>
+            <field name="comment">The user will be able to delete support channels.</field>
+            <field name="category_id" ref="module_category_im_livechat"/>
+            <field name="implied_ids" eval="[(4, ref('im_livechat.group_im_livechat'))]"/>
+            <field name="users" eval="[(4, ref('base.user_root'))]"/>
+        </record>
+
+        <record id="message_rule_1" model="ir.rule">
+            <field name="name">Live Support Managers can read messages from live support</field>
+            <field name="model_id" ref="im.model_im_message"/>
+            <field name="groups" eval="[(6,0,[ref('im_livechat.group_im_livechat_manager')])]"/>
+            <field name="domain_force">["|", ('to_id.user', '=', None), ('from_id.user', '=', None)]</field>
+            <field name="perm_unlink" eval="0"/>
+            <field name="perm_write" eval="0"/>
+            <field name="perm_read" eval="1"/>
+            <field name="perm_create" eval="0"/>
+        </record>
+
+    </data>
+</openerp>
diff --git a/addons/im_livechat/security/ir.model.access.csv b/addons/im_livechat/security/ir.model.access.csv
new file mode 100644
index 00000000000..6e17c1a127f
--- /dev/null
+++ b/addons/im_livechat/security/ir.model.access.csv
@@ -0,0 +1,6 @@
+id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink
+access_ls_chann1,im_livechat.channel,model_im_livechat_channel,,1,0,0,0
+access_ls_chann2,im_livechat.channel,model_im_livechat_channel,group_im_livechat,1,1,1,0
+access_ls_chann3,im_livechat.channel,model_im_livechat_channel,group_im_livechat_manager,1,1,1,1
+access_ls_message,im_livechat.im.message,im.model_im_message,portal.group_anonymous,0,0,0,0
+access_im_user,im_livechat.im.user,im.model_im_user,portal.group_anonymous,1,0,0,0
\ No newline at end of file
diff --git a/addons/im_livechat/static/ext/Makefile b/addons/im_livechat/static/ext/Makefile
new file mode 100644
index 00000000000..b73ca4f2b89
--- /dev/null
+++ b/addons/im_livechat/static/ext/Makefile
@@ -0,0 +1,3 @@
+
+static/js/livesupport_templates.js: static/js/livesupport_templates.html
+	python static/js/to_jsonp.py static/js/livesupport_templates.html oe_livesupport_templates_callback > static/js/livesupport_templates.js
\ No newline at end of file
diff --git a/addons/im_livechat/static/ext/static/audio/Ting.mp3 b/addons/im_livechat/static/ext/static/audio/Ting.mp3
new file mode 100644
index 00000000000..6fd090a89ce
--- /dev/null
+++ b/addons/im_livechat/static/ext/static/audio/Ting.mp3
diff --git a/addons/im_livechat/static/ext/static/audio/Ting.ogg b/addons/im_livechat/static/ext/static/audio/Ting.ogg
new file mode 100644
index 00000000000..8d17ea85bd3
--- /dev/null
+++ b/addons/im_livechat/static/ext/static/audio/Ting.ogg
diff --git a/addons/im_livechat/static/ext/static/css/livesupport.css b/addons/im_livechat/static/ext/static/css/livesupport.css
new file mode 100644
index 00000000000..bfe26b5e838
--- /dev/null
+++ b/addons/im_livechat/static/ext/static/css/livesupport.css
@@ -0,0 +1,190 @@
+
+
+
+.openerp_style { /* base style of openerp */
+  font-family: "Lucida Grande", Helvetica, Verdana, Arial, sans-serif;
+  color: #4c4c4c;
+  font-size: 13px;
+  background: white;
+  text-shadow: 0 1px 1px rgba(255, 255, 255, 0.5);
+}
+
+/* button */
+
+.oe_chat_button {
+    position: fixed;
+    bottom: 0px;
+    right: 6px;
+    display: inline-block;
+    min-width: 100px;
+    background-color: rgba(60, 60, 60, 0.6);
+    font-family: 'Lucida Grande', 'Lucida Sans Unicode', Arial, Verdana, sans-serif;
+    font-size: 14px;
+    font-weight: bold;
+    padding: 10px;
+    color: white;
+    text-shadow: rgb(59, 76, 88) 1px 1px 0px;
+    border: 1px solid rgb(80, 80, 80);
+    border-bottom: 0px;
+    border-top-left-radius: 5px;
+    border-top-right-radius: 5px;
+    cursor: pointer;
+}
+
+/* conversations */
+
+.oe_im_chatview {
+    position: fixed;
+    overflow: hidden;
+    bottom: 42px;
+    margin-right: 6px;
+    background: rgba(60, 60, 60, 0.8);
+    -moz-border-radius: 3px;
+    -webkit-border-radius: 3px;
+    border-radius: 3px;
+    -moz-box-shadow: 0 0 3px rgba(0,0,0,0.3), 0 2px 4px rgba(0,0,0,0.3);
+    -webkit-box-shadow: 0 0 3px rgba(0, 0, 0, 0.3), 0 2px 4px rgba(0, 0, 0, 0.3);
+    box-shadow: 0 0 3px rgba(0, 0, 0, 0.3), 0 2px 4px rgba(0, 0, 0, 0.3);
+    width: 240px;
+}
+.oe_im_chatview .oe_im_chatview_disconnected {
+    display:none;
+    z-index: 100;
+    width: 100%;
+    background: #E8EBEF;
+    padding: 5px;
+    font-size: 11px;
+    color: #999;
+    line-height: 14px;
+    height: 28px;
+    overflow: hidden;
+}
+.oe_im_chatview.oe_im_chatview_disconnected_status .oe_im_chatview_disconnected {
+    display: block;
+}
+.oe_im_chatview .oe_im_chatview_header {
+    padding: 3px 6px 2px;
+    background: #DEDEDE;
+    background: -moz-linear-gradient(#FCFCFC, #DEDEDE);
+    background: -webkit-gradient(linear, left top, left bottom, from(#FCFCFC), to(#DEDEDE));
+    -moz-border-radius: 3px 3px 0 0;
+    -webkit-border-radius: 3px 3px 0 0;
+    border-radius: 3px 3px 0 0;
+    border-bottom: 1px solid #AEB9BD;
+    cursor: pointer;
+}
+.oe_im_chatview .oe_im_chatview_close {
+    padding: 0;
+    cursor: pointer;
+    background: transparent;
+    border: 0;
+    -webkit-appearance: none;
+    font-size: 18px;
+    line-height: 16px;
+    float: right;
+    font-weight: bold;
+    color: black;
+    text-shadow: 0 1px 0 white;
+    opacity: 0.2;
+}
+.oe_im_chatview .oe_im_chatview_content {
+    overflow: auto;
+    height: 287px;
+    width: 240px;
+}
+.oe_im_chatview.oe_im_chatview_disconnected_status .oe_im_chatview_content {
+    height: 249px;
+}
+.oe_im_chatview .oe_im_chatview_footer {
+    position: relative;
+    padding: 3px;
+    border-top: 1px solid #AEB9BD;
+    background: #DEDEDE;
+    background: -moz-linear-gradient(#FCFCFC, #DEDEDE);
+    background: -webkit-gradient(linear, left top, left bottom, from(#FCFCFC), to(#DEDEDE));
+    -moz-border-radius: 0 0 3px 3px;
+    -webkit-border-radius: 0 0 3px 3px;
+    border-radius: 0 0 3px 3px;
+}
+.oe_im_chatview .oe_im_chatview_input {
+    width: 222px;
+    font-family: Lato, Helvetica, sans-serif;
+    font-size: 13px;
+    color: #333;
+    padding: 1px 5px;
+    border: 1px solid #AEB9BD;
+    -moz-border-radius: 3px;
+    -webkit-border-radius: 3px;
+    border-radius: 3px;
+    -moz-box-shadow: inset 0 1px 4px rgba(0,0,0,0.2);
+    -webkit-box-shadow: inset 0 1px 4px rgba(0, 0, 0, 0.2);
+    box-shadow: inset 0 1px 4px rgba(0, 0, 0, 0.2);
+}
+.oe_im_chatview .oe_im_chatview_bubble {
+    background: white;
+    position: relative;
+    padding: 3px;
+    margin: 3px;
+    -moz-border-radius: 3px;
+    -webkit-border-radius: 3px;
+    border-radius: 3px;
+}
+.oe_im_chatview .oe_im_chatview_clip {
+    position: relative;
+    float: left;
+    width: 26px;
+    height: 26px;
+    margin-right: 4px;
+    -moz-box-shadow: 0 0 2px 1px rgba(0,0,0,0.25);
+    -webkit-box-shadow: 0 0 2px 1px rgba(0, 0, 0, 0.25);
+    box-shadow: 0 0 2px 1px rgba(0, 0, 0, 0.25);
+}
+.oe_im_chatview .oe_im_chatview_avatar {
+    float: left;
+    width: 26px;
+    height: auto;
+    clip: rect(0, 26px, 26px, 0);
+    max-width: 100%;
+    width: auto 9;
+    height: auto;
+    vertical-align: middle;
+    border: 0;
+    -ms-interpolation-mode: bicubic;
+}
+.oe_im_chatview .oe_im_chatview_time {
+    position: absolute;
+    right: 0px;
+    top: 0px;
+    margin: 3px;
+    text-align: right;
+    line-height: 13px;
+    font-size: 11px;
+    color: #999;
+    width: 60px;
+    overflow: hidden;
+}
+.oe_im_chatview .oe_im_chatview_from {
+    margin: 0 0 2px 0;
+    line-height: 14px;
+    font-weight: bold;
+    font-size: 12px;
+    width: 140px;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+    overflow: hidden;
+    color: #3A87AD;
+}
+.oe_im_chatview .oe_im_chatview_bubble_list {
+}
+.oe_im_chatview .oe_im_chatview_bubble_item {
+    margin: 0 0 2px 30px;
+    line-height: 14px;
+    word-wrap: break-word;
+}
+
+.oe_im_chatview_online {
+    display: none;
+    margin-top: -4px;
+    width: 11px;
+    height: 11px;
+}
diff --git a/addons/im_livechat/static/ext/static/img/avatar/avatar.jpeg b/addons/im_livechat/static/ext/static/img/avatar/avatar.jpeg
new file mode 100644
index 00000000000..7168794022e
--- /dev/null
+++ b/addons/im_livechat/static/ext/static/img/avatar/avatar.jpeg
diff --git a/addons/im_livechat/static/ext/static/img/button-gloss.png b/addons/im_livechat/static/ext/static/img/button-gloss.png
new file mode 100755
index 00000000000..6f3957702fe
--- /dev/null
+++ b/addons/im_livechat/static/ext/static/img/button-gloss.png
diff --git a/addons/im_livechat/static/ext/static/img/glyphicons-halflings-white.png b/addons/im_livechat/static/ext/static/img/glyphicons-halflings-white.png
new file mode 100755
index 00000000000..3bf6484a29d
--- /dev/null
+++ b/addons/im_livechat/static/ext/static/img/glyphicons-halflings-white.png
diff --git a/addons/im_livechat/static/ext/static/img/glyphicons-halflings.png b/addons/im_livechat/static/ext/static/img/glyphicons-halflings.png
new file mode 100755
index 00000000000..a9969993201
--- /dev/null
+++ b/addons/im_livechat/static/ext/static/img/glyphicons-halflings.png
diff --git a/addons/im_livechat/static/ext/static/img/green.png b/addons/im_livechat/static/ext/static/img/green.png
new file mode 100644
index 00000000000..01fb373c251
--- /dev/null
+++ b/addons/im_livechat/static/ext/static/img/green.png
diff --git a/addons/im_livechat/static/ext/static/img/logo.png b/addons/im_livechat/static/ext/static/img/logo.png
new file mode 100644
index 00000000000..aca5f4c60d8
--- /dev/null
+++ b/addons/im_livechat/static/ext/static/img/logo.png
diff --git a/addons/im_livechat/static/ext/static/img/wood.png b/addons/im_livechat/static/ext/static/img/wood.png
new file mode 100644
index 00000000000..22f2450d3ad
--- /dev/null
+++ b/addons/im_livechat/static/ext/static/img/wood.png
diff --git a/addons/im_livechat/static/ext/static/js/jquery.achtung.css b/addons/im_livechat/static/ext/static/js/jquery.achtung.css
new file mode 100644
index 00000000000..820ae3e9194
--- /dev/null
+++ b/addons/im_livechat/static/ext/static/js/jquery.achtung.css
@@ -0,0 +1,306 @@
+/**
+ * achtung 0.3.0
+ * 
+ * Growl-like notifications for jQuery
+ *
+ * Copyright (c) 2009 Josh Varner <josh@voxwerk.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * Portions of this file are from the jQuery UI CSS framework.
+ *
+ * @license http://www.opensource.org/licenses/mit-license.php
+ * @author Josh Varner <josh@voxwerk.com>
+ */
+
+/* IE 6 doesn't support position: fixed */
+* html #achtung-overlay {
+	position:absolute;
+}
+
+/* IE6 includes padding in width */
+* html .achtung {
+    width: 280px;
+}
+
+#achtung-overlay {
+    overflow: hidden;
+    position: fixed;
+    top: 15px;
+    right: 15px;
+    width: 280px;
+    z-index:50;
+}
+
+.achtung {
+    display:none;
+    margin-bottom: 8px;
+	padding: 15px 15px;
+	background-color: #000;
+	color: white;
+	width: 250px;
+	font-weight: bold;
+	position:relative;
+	overflow: hidden;
+    -moz-box-shadow: #aaa 1px 1px 2px;
+    -webkit-box-shadow: #aaa 1px 1px 2px;
+    box-shadow: #aaa 1px 1px 2px;  
+    -moz-border-radius: 4px; -webkit-border-radius: 4px; border-radius: 4px;
+    /* Note that if using show/hide animations, IE will lose
+       this setting */
+    opacity: .85;
+    filter:Alpha(Opacity=85);
+}
+
+/**
+ * This section from jQuery UI CSS framework
+ * Copyright (c) 2009 AUTHORS.txt (http://jqueryui.com/about)
+ * Can (and should) be removed if you are already loading the jQuery UI CSS
+ * to reduce payload size.
+ */
+.ui-icon { display: block; overflow: hidden; background-repeat: no-repeat; }
+.ui-icon { width: 16px; height: 16px; }
+.ui-icon-carat-1-n { background-position: 0 0; }
+.ui-icon-carat-1-ne { background-position: -16px 0; }
+.ui-icon-carat-1-e { background-position: -32px 0; }
+.ui-icon-carat-1-se { background-position: -48px 0; }
+.ui-icon-carat-1-s { background-position: -64px 0; }
+.ui-icon-carat-1-sw { background-position: -80px 0; }
+.ui-icon-carat-1-w { background-position: -96px 0; }
+.ui-icon-carat-1-nw { background-position: -112px 0; }
+.ui-icon-carat-2-n-s { background-position: -128px 0; }
+.ui-icon-carat-2-e-w { background-position: -144px 0; }
+.ui-icon-triangle-1-n { background-position: 0 -16px; }
+.ui-icon-triangle-1-ne { background-position: -16px -16px; }
+.ui-icon-triangle-1-e { background-position: -32px -16px; }
+.ui-icon-triangle-1-se { background-position: -48px -16px; }
+.ui-icon-triangle-1-s { background-position: -64px -16px; }
+.ui-icon-triangle-1-sw { background-position: -80px -16px; }
+.ui-icon-triangle-1-w { background-position: -96px -16px; }
+.ui-icon-triangle-1-nw { background-position: -112px -16px; }
+.ui-icon-triangle-2-n-s { background-position: -128px -16px; }
+.ui-icon-triangle-2-e-w { background-position: -144px -16px; }
+.ui-icon-arrow-1-n { background-position: 0 -32px; }
+.ui-icon-arrow-1-ne { background-position: -16px -32px; }
+.ui-icon-arrow-1-e { background-position: -32px -32px; }
+.ui-icon-arrow-1-se { background-position: -48px -32px; }
+.ui-icon-arrow-1-s { background-position: -64px -32px; }
+.ui-icon-arrow-1-sw { background-position: -80px -32px; }
+.ui-icon-arrow-1-w { background-position: -96px -32px; }
+.ui-icon-arrow-1-nw { background-position: -112px -32px; }
+.ui-icon-arrow-2-n-s { background-position: -128px -32px; }
+.ui-icon-arrow-2-ne-sw { background-position: -144px -32px; }
+.ui-icon-arrow-2-e-w { background-position: -160px -32px; }
+.ui-icon-arrow-2-se-nw { background-position: -176px -32px; }
+.ui-icon-arrowstop-1-n { background-position: -192px -32px; }
+.ui-icon-arrowstop-1-e { background-position: -208px -32px; }
+.ui-icon-arrowstop-1-s { background-position: -224px -32px; }
+.ui-icon-arrowstop-1-w { background-position: -240px -32px; }
+.ui-icon-arrowthick-1-n { background-position: 0 -48px; }
+.ui-icon-arrowthick-1-ne { background-position: -16px -48px; }
+.ui-icon-arrowthick-1-e { background-position: -32px -48px; }
+.ui-icon-arrowthick-1-se { background-position: -48px -48px; }
+.ui-icon-arrowthick-1-s { background-position: -64px -48px; }
+.ui-icon-arrowthick-1-sw { background-position: -80px -48px; }
+.ui-icon-arrowthick-1-w { background-position: -96px -48px; }
+.ui-icon-arrowthick-1-nw { background-position: -112px -48px; }
+.ui-icon-arrowthick-2-n-s { background-position: -128px -48px; }
+.ui-icon-arrowthick-2-ne-sw { background-position: -144px -48px; }
+.ui-icon-arrowthick-2-e-w { background-position: -160px -48px; }
+.ui-icon-arrowthick-2-se-nw { background-position: -176px -48px; }
+.ui-icon-arrowthickstop-1-n { background-position: -192px -48px; }
+.ui-icon-arrowthickstop-1-e { background-position: -208px -48px; }
+.ui-icon-arrowthickstop-1-s { background-position: -224px -48px; }
+.ui-icon-arrowthickstop-1-w { background-position: -240px -48px; }
+.ui-icon-arrowreturnthick-1-w { background-position: 0 -64px; }
+.ui-icon-arrowreturnthick-1-n { background-position: -16px -64px; }
+.ui-icon-arrowreturnthick-1-e { background-position: -32px -64px; }
+.ui-icon-arrowreturnthick-1-s { background-position: -48px -64px; }
+.ui-icon-arrowreturn-1-w { background-position: -64px -64px; }
+.ui-icon-arrowreturn-1-n { background-position: -80px -64px; }
+.ui-icon-arrowreturn-1-e { background-position: -96px -64px; }
+.ui-icon-arrowreturn-1-s { background-position: -112px -64px; }
+.ui-icon-arrowrefresh-1-w { background-position: -128px -64px; }
+.ui-icon-arrowrefresh-1-n { background-position: -144px -64px; }
+.ui-icon-arrowrefresh-1-e { background-position: -160px -64px; }
+.ui-icon-arrowrefresh-1-s { background-position: -176px -64px; }
+.ui-icon-arrow-4 { background-position: 0 -80px; }
+.ui-icon-arrow-4-diag { background-position: -16px -80px; }
+.ui-icon-extlink { background-position: -32px -80px; }
+.ui-icon-newwin { background-position: -48px -80px; }
+.ui-icon-refresh { background-position: -64px -80px; }
+.ui-icon-shuffle { background-position: -80px -80px; }
+.ui-icon-transfer-e-w { background-position: -96px -80px; }
+.ui-icon-transferthick-e-w { background-position: -112px -80px; }
+.ui-icon-folder-collapsed { background-position: 0 -96px; }
+.ui-icon-folder-open { background-position: -16px -96px; }
+.ui-icon-document { background-position: -32px -96px; }
+.ui-icon-document-b { background-position: -48px -96px; }
+.ui-icon-note { background-position: -64px -96px; }
+.ui-icon-mail-closed { background-position: -80px -96px; }
+.ui-icon-mail-open { background-position: -96px -96px; }
+.ui-icon-suitcase { background-position: -112px -96px; }
+.ui-icon-comment { background-position: -128px -96px; }
+.ui-icon-person { background-position: -144px -96px; }
+.ui-icon-print { background-position: -160px -96px; }
+.ui-icon-trash { background-position: -176px -96px; }
+.ui-icon-locked { background-position: -192px -96px; }
+.ui-icon-unlocked { background-position: -208px -96px; }
+.ui-icon-bookmark { background-position: -224px -96px; }
+.ui-icon-tag { background-position: -240px -96px; }
+.ui-icon-home { background-position: 0 -112px; }
+.ui-icon-flag { background-position: -16px -112px; }
+.ui-icon-calendar { background-position: -32px -112px; }
+.ui-icon-cart { background-position: -48px -112px; }
+.ui-icon-pencil { background-position: -64px -112px; }
+.ui-icon-clock { background-position: -80px -112px; }
+.ui-icon-disk { background-position: -96px -112px; }
+.ui-icon-calculator { background-position: -112px -112px; }
+.ui-icon-zoomin { background-position: -128px -112px; }
+.ui-icon-zoomout { background-position: -144px -112px; }
+.ui-icon-search { background-position: -160px -112px; }
+.ui-icon-wrench { background-position: -176px -112px; }
+.ui-icon-gear { background-position: -192px -112px; }
+.ui-icon-heart { background-position: -208px -112px; }
+.ui-icon-star { background-position: -224px -112px; }
+.ui-icon-link { background-position: -240px -112px; }
+.ui-icon-cancel { background-position: 0 -128px; }
+.ui-icon-plus { background-position: -16px -128px; }
+.ui-icon-plusthick { background-position: -32px -128px; }
+.ui-icon-minus { background-position: -48px -128px; }
+.ui-icon-minusthick { background-position: -64px -128px; }
+.ui-icon-close { background-position: -80px -128px; }
+.ui-icon-closethick { background-position: -96px -128px; }
+.ui-icon-key { background-position: -112px -128px; }
+.ui-icon-lightbulb { background-position: -128px -128px; }
+.ui-icon-scissors { background-position: -144px -128px; }
+.ui-icon-clipboard { background-position: -160px -128px; }
+.ui-icon-copy { background-position: -176px -128px; }
+.ui-icon-contact { background-position: -192px -128px; }
+.ui-icon-image { background-position: -208px -128px; }
+.ui-icon-video { background-position: -224px -128px; }
+.ui-icon-script { background-position: -240px -128px; }
+.ui-icon-alert { background-position: 0 -144px; }
+.ui-icon-info { background-position: -16px -144px; }
+.ui-icon-notice { background-position: -32px -144px; }
+.ui-icon-help { background-position: -48px -144px; }
+.ui-icon-check { background-position: -64px -144px; }
+.ui-icon-bullet { background-position: -80px -144px; }
+.ui-icon-radio-off { background-position: -96px -144px; }
+.ui-icon-radio-on { background-position: -112px -144px; }
+.ui-icon-pin-w { background-position: -128px -144px; }
+.ui-icon-pin-s { background-position: -144px -144px; }
+.ui-icon-play { background-position: 0 -160px; }
+.ui-icon-pause { background-position: -16px -160px; }
+.ui-icon-seek-next { background-position: -32px -160px; }
+.ui-icon-seek-prev { background-position: -48px -160px; }
+.ui-icon-seek-end { background-position: -64px -160px; }
+.ui-icon-seek-first { background-position: -80px -160px; }
+.ui-icon-stop { background-position: -96px -160px; }
+.ui-icon-eject { background-position: -112px -160px; }
+.ui-icon-volume-off { background-position: -128px -160px; }
+.ui-icon-volume-on { background-position: -144px -160px; }
+.ui-icon-power { background-position: 0 -176px; }
+.ui-icon-signal-diag { background-position: -16px -176px; }
+.ui-icon-signal { background-position: -32px -176px; }
+.ui-icon-battery-0 { background-position: -48px -176px; }
+.ui-icon-battery-1 { background-position: -64px -176px; }
+.ui-icon-battery-2 { background-position: -80px -176px; }
+.ui-icon-battery-3 { background-position: -96px -176px; }
+.ui-icon-circle-plus { background-position: 0 -192px; }
+.ui-icon-circle-minus { background-position: -16px -192px; }
+.ui-icon-circle-close { background-position: -32px -192px; }
+.ui-icon-circle-triangle-e { background-position: -48px -192px; }
+.ui-icon-circle-triangle-s { background-position: -64px -192px; }
+.ui-icon-circle-triangle-w { background-position: -80px -192px; }
+.ui-icon-circle-triangle-n { background-position: -96px -192px; }
+.ui-icon-circle-arrow-e { background-position: -112px -192px; }
+.ui-icon-circle-arrow-s { background-position: -128px -192px; }
+.ui-icon-circle-arrow-w { background-position: -144px -192px; }
+.ui-icon-circle-arrow-n { background-position: -160px -192px; }
+.ui-icon-circle-zoomin { background-position: -176px -192px; }
+.ui-icon-circle-zoomout { background-position: -192px -192px; }
+.ui-icon-circle-check { background-position: -208px -192px; }
+.ui-icon-circlesmall-plus { background-position: 0 -208px; }
+.ui-icon-circlesmall-minus { background-position: -16px -208px; }
+.ui-icon-circlesmall-close { background-position: -32px -208px; }
+.ui-icon-squaresmall-plus { background-position: -48px -208px; }
+.ui-icon-squaresmall-minus { background-position: -64px -208px; }
+.ui-icon-squaresmall-close { background-position: -80px -208px; }
+.ui-icon-grip-dotted-vertical { background-position: 0 -224px; }
+.ui-icon-grip-dotted-horizontal { background-position: -16px -224px; }
+.ui-icon-grip-solid-vertical { background-position: -32px -224px; }
+.ui-icon-grip-solid-horizontal { background-position: -48px -224px; }
+.ui-icon-gripsmall-diagonal-se { background-position: -64px -224px; }
+.ui-icon-grip-diagonal-se { background-position: -80px -224px; }
+
+.achtung .achtung-message-icon {
+	margin-top: 0px;
+	margin-left: -.5em;
+	margin-right: .5em;
+    float: left;
+	zoom: 1;
+}
+
+.achtung .ui-icon.achtung-close-button {
+    float: right;
+    margin-right: -8px;
+    margin-top: -12px;
+    cursor: pointer;
+    color: white;
+    text-align: right;
+}
+
+.achtung .ui-icon.achtung-close-button:after {
+    content: "x"
+}
+
+/* Slightly darker for these colors (readability) */
+.achtungSuccess, .achtungFail, .achtungWait {
+    /* Note that if using show/hide animations, IE will lose
+       this setting */
+    opacity: .93; filter:Alpha(Opacity=93);
+}
+
+.achtungSuccess {
+	background-color: #4DB559;
+}
+
+.achtungFail {
+	background-color: #D64450;
+}
+
+.achtungWait {
+	background-color: #658093;
+}
+
+.achtungSuccess .ui-icon.achtung-close-button,
+.achtungFail .ui-icon.achtung-close-button {
+}
+
+.achtungSuccess .ui-icon.achtung-close-button-hover,
+.achtungFail .ui-icon.achtung-close-button-hover {
+}
+
+.achtung .wait-icon {
+}
+
+.achtung .achtung-message {
+    display: inline;
+}
diff --git a/addons/im_livechat/static/ext/static/js/jquery.achtung.js b/addons/im_livechat/static/ext/static/js/jquery.achtung.js
new file mode 100644
index 00000000000..1aa69469c1d
--- /dev/null
+++ b/addons/im_livechat/static/ext/static/js/jquery.achtung.js
@@ -0,0 +1,273 @@
+/**
+ * achtung 0.3.0
+ * 
+ * Growl-like notifications for jQuery
+ *
+ * Copyright (c) 2009 Josh Varner <josh@voxwerk.com>
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * @license http://www.opensource.org/licenses/mit-license.php
+ * @author Josh Varner <josh@voxwerk.com>
+ */
+
+/*globals jQuery,clearTimeout,document,navigator,setTimeout
+*/
+(function($) {
+
+/**
+ * This is based on the jQuery UI $.widget code. I would have just made this
+ * a $.widget but I didn't want the jQuery UI dependency.
+ */
+$.fn.achtung = function(options)
+{
+	var isMethodCall = (typeof options === 'string'),
+		args = Array.prototype.slice.call(arguments, 0),
+		name = 'achtung';
+
+	// handle initialization and non-getter methods
+	return this.each(function() {
+		var instance = $.data(this, name);
+
+		// prevent calls to internal methods
+		if (isMethodCall && options.substring(0, 1) === '_') {
+			return this;
+		}
+
+		// constructor
+		(!instance && !isMethodCall &&
+			$.data(this, name, new $.achtung(this))._init(args));
+
+		// method call
+		(instance && isMethodCall && $.isFunction(instance[options]) &&
+			instance[options].apply(instance, args.slice(1)));
+	});
+};
+
+$.achtung = function(element)
+{
+    var args = Array.prototype.slice.call(arguments, 0), $el;
+
+    if (!element || !element.nodeType) {
+        $el = $('<div />');
+        return $el.achtung.apply($el, args);
+    }
+    
+    this.$container = $(element);
+};
+
+
+/**
+ * Static members
+ **/
+$.extend($.achtung, {
+    version: '0.3.0',
+    $overlay: false,
+    defaults: {
+        timeout: 10,
+        disableClose: false,
+        icon: false,
+        className: '',
+        animateClassSwitch: false,
+        showEffects: {'opacity':'toggle','height':'toggle'},
+        hideEffects: {'opacity':'toggle','height':'toggle'},
+        showEffectDuration: 500,
+        hideEffectDuration: 700
+    }
+});
+
+/**
+ * Non-static members
+ **/
+$.extend($.achtung.prototype, {
+    $container: false,
+    closeTimer: false,
+    options: {},
+    
+    _init: function(args)
+    {
+        var o, self = this;
+
+        args = $.isArray(args) ? args : [];
+
+        
+        args.unshift($.achtung.defaults);
+        args.unshift({});
+
+        o = this.options = $.extend.apply($, args);
+
+        if (!$.achtung.$overlay) {
+    	    $.achtung.$overlay = $('<div id="achtung-overlay"></div>').appendTo(document.body);
+        }
+
+        if (!o.disableClose) {
+            $('<span class="achtung-close-button ui-icon ui-icon-close" />')
+                .click(function () {  self.close();  })
+                .hover(function () { $(this).addClass('achtung-close-button-hover'); },
+                       function () { $(this).removeClass('achtung-close-button-hover'); })
+                .prependTo(this.$container);
+        }
+
+        this.changeIcon(o.icon, true);
+
+        if (o.message) {
+            this.$container.append($('<span class="achtung-message">' + o.message + '</span>'));
+        }
+
+        (o.className && this.$container.addClass(o.className));
+        (o.css && this.$container.css(o.css));
+
+        this.$container
+            .addClass('achtung')
+            .appendTo($.achtung.$overlay);
+
+        if (o.showEffects) {
+            this.$container.toggle();
+        } else {
+            this.$container.show();
+        }
+
+        if (o.timeout > 0) {
+            this.timeout(o.timeout);
+        }
+    },
+    
+    timeout: function(timeout)
+    {
+        var self = this;
+
+        if (this.closeTimer) {
+            clearTimeout(this.closeTimer);
+        }
+
+        this.closeTimer = setTimeout(function() { self.close(); }, timeout * 1000);
+        this.options.timeout = timeout;
+    },
+
+    /**
+     * Change the CSS class associated with this message, using
+     * a transition if available (not availble in Safari/Webkit).
+     * If no transition is available, the switch is immediate.
+     * 
+     * #LATER Check if this has been corrected in Webkit or jQuery UI
+     * #TODO Make transition time configurable
+     * @param newClass string Name of new class to associate
+     */
+    changeClass: function(newClass)
+    {
+        var self = this;
+
+        if (this.options.className === newClass) {
+            return;
+        }
+
+        this.$container.queue(function() {
+            if (!self.options.animateClassSwitch ||
+                /webkit/.test(navigator.userAgent.toLowerCase()) ||
+                !$.isFunction($.fn.switchClass)) {
+                self.$container.removeClass(self.options.className);
+                self.$container.addClass(newClass);
+            } else {
+                self.$container.switchClass(self.options.className, newClass, 500);
+            }
+
+            self.options.className = newClass;
+            self.$container.dequeue();
+        });
+    },
+
+    changeIcon: function(newIcon, force)
+    {
+        var self = this;
+
+        if ((force !== true || newIcon === false) && this.options.icon === newIcon) {
+            return;
+        }
+
+        if (force || this.options.icon === false) {
+            this.$container.prepend($('<span class="achtung-message-icon ui-icon ' + newIcon + '" />'));
+            this.options.icon = newIcon;
+            return;
+        } else if (newIcon === false) {
+            this.$container.find('.achtung-message-icon').remove();
+            this.options.icon = false;
+            return;
+        }
+
+        this.$container.queue(function() {
+            var $span = $('.achtung-message-icon', self.$container);
+
+            if (!self.options.animateClassSwitch ||
+                /webkit/.test(navigator.userAgent.toLowerCase()) ||
+                !$.isFunction($.fn.switchClass)) {
+                $span.removeClass(self.options.icon);
+                $span.addClass(newIcon);
+            } else {
+                $span.switchClass(self.options.icon, newIcon, 500);
+            }
+
+            self.options.icon = newIcon;
+            self.$container.dequeue();
+        });
+    },
+
+
+    changeMessage: function(newMessage)
+    {
+        this.$container.queue(function() {
+            $('.achtung-message', $(this)).html(newMessage);
+            $(this).dequeue();
+        });
+    },
+
+
+    update: function(options)
+    {
+        (options.className && this.changeClass(options.className));
+        (options.css && this.$container.css(options.css));
+        (typeof(options.icon) !== 'undefined' && this.changeIcon(options.icon));
+        (options.message && this.changeMessage(options.message));
+        (options.timeout && this.timeout(options.timeout));
+    },
+
+    close: function() 
+    {
+        var o = this.options, $container = this.$container;
+
+        if (o.hideEffects) {
+            this.$container.animate(o.hideEffects, o.hideEffectDuration);
+        } else {
+            this.$container.hide();
+        }
+
+        $container.queue(function() {
+            $container.removeData('achtung');
+            $container.remove();
+            
+            if ($.achtung.$overlay && $.achtung.$overlay.is(':empty')) {
+                $.achtung.$overlay.remove();
+                $.achtung.$overlay = false;
+            }
+            
+            $container.dequeue();
+        });
+    }
+});
+
+})(jQuery);
\ No newline at end of file
diff --git a/addons/im_livechat/static/ext/static/js/jquery.js b/addons/im_livechat/static/ext/static/js/jquery.js
new file mode 100644
index 00000000000..ded03845983
--- /dev/null
+++ b/addons/im_livechat/static/ext/static/js/jquery.js
@@ -0,0 +1,9555 @@
+/*!
+ * jQuery JavaScript Library v1.9.0
+ * http://jquery.com/
+ *
+ * Includes Sizzle.js
+ * http://sizzlejs.com/
+ *
+ * Copyright 2005, 2012 jQuery Foundation, Inc. and other contributors
+ * Released under the MIT license
+ * http://jquery.org/license
+ *
+ * Date: 2013-1-14
+ */
+(function( window, undefined ) {
+"use strict";
+var
+    // A central reference to the root jQuery(document)
+    rootjQuery,
+
+    // The deferred used on DOM ready
+    readyList,
+
+    // Use the correct document accordingly with window argument (sandbox)
+    document = window.document,
+    location = window.location,
+
+    // Map over jQuery in case of overwrite
+    _jQuery = window.jQuery,
+
+    // Map over the $ in case of overwrite
+    _$ = window.$,
+
+    // [[Class]] -> type pairs
+    class2type = {},
+
+    // List of deleted data cache ids, so we can reuse them
+    core_deletedIds = [],
+
+    core_version = "1.9.0",
+
+    // Save a reference to some core methods
+    core_concat = core_deletedIds.concat,
+    core_push = core_deletedIds.push,
+    core_slice = core_deletedIds.slice,
+    core_indexOf = core_deletedIds.indexOf,
+    core_toString = class2type.toString,
+    core_hasOwn = class2type.hasOwnProperty,
+    core_trim = core_version.trim,
+
+    // Define a local copy of jQuery
+    jQuery = function( selector, context ) {
+        // The jQuery object is actually just the init constructor 'enhanced'
+        return new jQuery.fn.init( selector, context, rootjQuery );
+    },
+
+    // Used for matching numbers
+    core_pnum = /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/.source,
+
+    // Used for splitting on whitespace
+    core_rnotwhite = /\S+/g,
+
+    // Make sure we trim BOM and NBSP (here's looking at you, Safari 5.0 and IE)
+    rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g,
+
+    // A simple way to check for HTML strings
+    // Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
+    // Strict HTML recognition (#11290: must start with <)
+    rquickExpr = /^(?:(<[\w\W]+>)[^>]*|#([\w-]*))$/,
+
+    // Match a standalone tag
+    rsingleTag = /^<(\w+)\s*\/?>(?:<\/\1>|)$/,
+
+    // JSON RegExp
+    rvalidchars = /^[\],:{}\s]*$/,
+    rvalidbraces = /(?:^|:|,)(?:\s*\[)+/g,
+    rvalidescape = /\\(?:["\\\/bfnrt]|u[\da-fA-F]{4})/g,
+    rvalidtokens = /"[^"\\\r\n]*"|true|false|null|-?(?:\d+\.|)\d+(?:[eE][+-]?\d+|)/g,
+
+    // Matches dashed string for camelizing
+    rmsPrefix = /^-ms-/,
+    rdashAlpha = /-([\da-z])/gi,
+
+    // Used by jQuery.camelCase as callback to replace()
+    fcamelCase = function( all, letter ) {
+        return letter.toUpperCase();
+    },
+
+    // The ready event handler and self cleanup method
+    DOMContentLoaded = function() {
+        if ( document.addEventListener ) {
+            document.removeEventListener( "DOMContentLoaded", DOMContentLoaded, false );
+            jQuery.ready();
+        } else if ( document.readyState === "complete" ) {
+            // we're here because readyState === "complete" in oldIE
+            // which is good enough for us to call the dom ready!
+            document.detachEvent( "onreadystatechange", DOMContentLoaded );
+            jQuery.ready();
+        }
+    };
+
+jQuery.fn = jQuery.prototype = {
+    // The current version of jQuery being used
+    jquery: core_version,
+
+    constructor: jQuery,
+    init: function( selector, context, rootjQuery ) {
+        var match, elem;
+
+        // HANDLE: $(""), $(null), $(undefined), $(false)
+        if ( !selector ) {
+            return this;
+        }
+
+        // Handle HTML strings
+        if ( typeof selector === "string" ) {
+            if ( selector.charAt(0) === "<" && selector.charAt( selector.length - 1 ) === ">" && selector.length >= 3 ) {
+                // Assume that strings that start and end with <> are HTML and skip the regex check
+                match = [ null, selector, null ];
+
+            } else {
+                match = rquickExpr.exec( selector );
+            }
+
+            // Match html or make sure no context is specified for #id
+            if ( match && (match[1] || !context) ) {
+
+                // HANDLE: $(html) -> $(array)
+                if ( match[1] ) {
+                    context = context instanceof jQuery ? context[0] : context;
+
+                    // scripts is true for back-compat
+                    jQuery.merge( this, jQuery.parseHTML(
+                        match[1],
+                        context && context.nodeType ? context.ownerDocument || context : document,
+                        true
+                    ) );
+
+                    // HANDLE: $(html, props)
+                    if ( rsingleTag.test( match[1] ) && jQuery.isPlainObject( context ) ) {
+                        for ( match in context ) {
+                            // Properties of context are called as methods if possible
+                            if ( jQuery.isFunction( this[ match ] ) ) {
+                                this[ match ]( context[ match ] );
+
+                            // ...and otherwise set as attributes
+                            } else {
+                                this.attr( match, context[ match ] );
+                            }
+                        }
+                    }
+
+                    return this;
+
+                // HANDLE: $(#id)
+                } else {
+                    elem = document.getElementById( match[2] );
+
+                    // Check parentNode to catch when Blackberry 4.6 returns
+                    // nodes that are no longer in the document #6963
+                    if ( elem && elem.parentNode ) {
+                        // Handle the case where IE and Opera return items
+                        // by name instead of ID
+                        if ( elem.id !== match[2] ) {
+                            return rootjQuery.find( selector );
+                        }
+
+                        // Otherwise, we inject the element directly into the jQuery object
+                        this.length = 1;
+                        this[0] = elem;
+                    }
+
+                    this.context = document;
+                    this.selector = selector;
+                    return this;
+                }
+
+            // HANDLE: $(expr, $(...))
+            } else if ( !context || context.jquery ) {
+                return ( context || rootjQuery ).find( selector );
+
+            // HANDLE: $(expr, context)
+            // (which is just equivalent to: $(context).find(expr)
+            } else {
+                return this.constructor( context ).find( selector );
+            }
+
+        // HANDLE: $(DOMElement)
+        } else if ( selector.nodeType ) {
+            this.context = this[0] = selector;
+            this.length = 1;
+            return this;
+
+        // HANDLE: $(function)
+        // Shortcut for document ready
+        } else if ( jQuery.isFunction( selector ) ) {
+            return rootjQuery.ready( selector );
+        }
+
+        if ( selector.selector !== undefined ) {
+            this.selector = selector.selector;
+            this.context = selector.context;
+        }
+
+        return jQuery.makeArray( selector, this );
+    },
+
+    // Start with an empty selector
+    selector: "",
+
+    // The default length of a jQuery object is 0
+    length: 0,
+
+    // The number of elements contained in the matched element set
+    size: function() {
+        return this.length;
+    },
+
+    toArray: function() {
+        return core_slice.call( this );
+    },
+
+    // Get the Nth element in the matched element set OR
+    // Get the whole matched element set as a clean array
+    get: function( num ) {
+        return num == null ?
+
+            // Return a 'clean' array
+            this.toArray() :
+
+            // Return just the object
+            ( num < 0 ? this[ this.length + num ] : this[ num ] );
+    },
+
+    // Take an array of elements and push it onto the stack
+    // (returning the new matched element set)
+    pushStack: function( elems ) {
+
+        // Build a new jQuery matched element set
+        var ret = jQuery.merge( this.constructor(), elems );
+
+        // Add the old object onto the stack (as a reference)
+        ret.prevObject = this;
+        ret.context = this.context;
+
+        // Return the newly-formed element set
+        return ret;
+    },
+
+    // Execute a callback for every element in the matched set.
+    // (You can seed the arguments with an array of args, but this is
+    // only used internally.)
+    each: function( callback, args ) {
+        return jQuery.each( this, callback, args );
+    },
+
+    ready: function( fn ) {
+        // Add the callback
+        jQuery.ready.promise().done( fn );
+
+        return this;
+    },
+
+    slice: function() {
+        return this.pushStack( core_slice.apply( this, arguments ) );
+    },
+
+    first: function() {
+        return this.eq( 0 );
+    },
+
+    last: function() {
+        return this.eq( -1 );
+    },
+
+    eq: function( i ) {
+        var len = this.length,
+            j = +i + ( i < 0 ? len : 0 );
+        return this.pushStack( j >= 0 && j < len ? [ this[j] ] : [] );
+    },
+
+    map: function( callback ) {
+        return this.pushStack( jQuery.map(this, function( elem, i ) {
+            return callback.call( elem, i, elem );
+        }));
+    },
+
+    end: function() {
+        return this.prevObject || this.constructor(null);
+    },
+
+    // For internal use only.
+    // Behaves like an Array's method, not like a jQuery method.
+    push: core_push,
+    sort: [].sort,
+    splice: [].splice
+};
+
+// Give the init function the jQuery prototype for later instantiation
+jQuery.fn.init.prototype = jQuery.fn;
+
+jQuery.extend = jQuery.fn.extend = function() {
+    var options, name, src, copy, copyIsArray, clone,
+        target = arguments[0] || {},
+        i = 1,
+        length = arguments.length,
+        deep = false;
+
+    // Handle a deep copy situation
+    if ( typeof target === "boolean" ) {
+        deep = target;
+        target = arguments[1] || {};
+        // skip the boolean and the target
+        i = 2;
+    }
+
+    // Handle case when target is a string or something (possible in deep copy)
+    if ( typeof target !== "object" && !jQuery.isFunction(target) ) {
+        target = {};
+    }
+
+    // extend jQuery itself if only one argument is passed
+    if ( length === i ) {
+        target = this;
+        --i;
+    }
+
+    for ( ; i < length; i++ ) {
+        // Only deal with non-null/undefined values
+        if ( (options = arguments[ i ]) != null ) {
+            // Extend the base object
+            for ( name in options ) {
+                src = target[ name ];
+                copy = options[ name ];
+
+                // Prevent never-ending loop
+                if ( target === copy ) {
+                    continue;
+                }
+
+                // Recurse if we're merging plain objects or arrays
+                if ( deep && copy && ( jQuery.isPlainObject(copy) || (copyIsArray = jQuery.isArray(copy)) ) ) {
+                    if ( copyIsArray ) {
+                        copyIsArray = false;
+                        clone = src && jQuery.isArray(src) ? src : [];
+
+                    } else {
+                        clone = src && jQuery.isPlainObject(src) ? src : {};
+                    }
+
+                    // Never move original objects, clone them
+                    target[ name ] = jQuery.extend( deep, clone, copy );
+
+                // Don't bring in undefined values
+                } else if ( copy !== undefined ) {
+                    target[ name ] = copy;
+                }
+            }
+        }
+    }
+
+    // Return the modified object
+    return target;
+};
+
+jQuery.extend({
+    noConflict: function( deep ) {
+        if ( window.$ === jQuery ) {
+            window.$ = _$;
+        }
+
+        if ( deep && window.jQuery === jQuery ) {
+            window.jQuery = _jQuery;
+        }
+
+        return jQuery;
+    },
+
+    // Is the DOM ready to be used? Set to true once it occurs.
+    isReady: false,
+
+    // A counter to track how many items to wait for before
+    // the ready event fires. See #6781
+    readyWait: 1,
+
+    // Hold (or release) the ready event
+    holdReady: function( hold ) {
+        if ( hold ) {
+            jQuery.readyWait++;
+        } else {
+            jQuery.ready( true );
+        }
+    },
+
+    // Handle when the DOM is ready
+    ready: function( wait ) {
+
+        // Abort if there are pending holds or we're already ready
+        if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
+            return;
+        }
+
+        // Make sure body exists, at least, in case IE gets a little overzealous (ticket #5443).
+        if ( !document.body ) {
+            return setTimeout( jQuery.ready );
+        }
+
+        // Remember that the DOM is ready
+        jQuery.isReady = true;
+
+        // If a normal DOM Ready event fired, decrement, and wait if need be
+        if ( wait !== true && --jQuery.readyWait > 0 ) {
+            return;
+        }
+
+        // If there are functions bound, to execute
+        readyList.resolveWith( document, [ jQuery ] );
+
+        // Trigger any bound ready events
+        if ( jQuery.fn.trigger ) {
+            jQuery( document ).trigger("ready").off("ready");
+        }
+    },
+
+    // See test/unit/core.js for details concerning isFunction.
+    // Since version 1.3, DOM methods and functions like alert
+    // aren't supported. They return false on IE (#2968).
+    isFunction: function( obj ) {
+        return jQuery.type(obj) === "function";
+    },
+
+    isArray: Array.isArray || function( obj ) {
+        return jQuery.type(obj) === "array";
+    },
+
+    isWindow: function( obj ) {
+        return obj != null && obj == obj.window;
+    },
+
+    isNumeric: function( obj ) {
+        return !isNaN( parseFloat(obj) ) && isFinite( obj );
+    },
+
+    type: function( obj ) {
+        if ( obj == null ) {
+            return String( obj );
+        }
+        return typeof obj === "object" || typeof obj === "function" ?
+            class2type[ core_toString.call(obj) ] || "object" :
+            typeof obj;
+    },
+
+    isPlainObject: function( obj ) {
+        // Must be an Object.
+        // Because of IE, we also have to check the presence of the constructor property.
+        // Make sure that DOM nodes and window objects don't pass through, as well
+        if ( !obj || jQuery.type(obj) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) {
+            return false;
+        }
+
+        try {
+            // Not own constructor property must be Object
+            if ( obj.constructor &&
+                !core_hasOwn.call(obj, "constructor") &&
+                !core_hasOwn.call(obj.constructor.prototype, "isPrototypeOf") ) {
+                return false;
+            }
+        } catch ( e ) {
+            // IE8,9 Will throw exceptions on certain host objects #9897
+            return false;
+        }
+
+        // Own properties are enumerated firstly, so to speed up,
+        // if last one is own, then all properties are own.
+
+        var key;
+        for ( key in obj ) {}
+
+        return key === undefined || core_hasOwn.call( obj, key );
+    },
+
+    isEmptyObject: function( obj ) {
+        var name;
+        for ( name in obj ) {
+            return false;
+        }
+        return true;
+    },
+
+    error: function( msg ) {
+        throw new Error( msg );
+    },
+
+    // data: string of html
+    // context (optional): If specified, the fragment will be created in this context, defaults to document
+    // keepScripts (optional): If true, will include scripts passed in the html string
+    parseHTML: function( data, context, keepScripts ) {
+        if ( !data || typeof data !== "string" ) {
+            return null;
+        }
+        if ( typeof context === "boolean" ) {
+            keepScripts = context;
+            context = false;
+        }
+        context = context || document;
+
+        var parsed = rsingleTag.exec( data ),
+            scripts = !keepScripts && [];
+
+        // Single tag
+        if ( parsed ) {
+            return [ context.createElement( parsed[1] ) ];
+        }
+
+        parsed = jQuery.buildFragment( [ data ], context, scripts );
+        if ( scripts ) {
+            jQuery( scripts ).remove();
+        }
+        return jQuery.merge( [], parsed.childNodes );
+    },
+
+    parseJSON: function( data ) {
+        // Attempt to parse using the native JSON parser first
+        if ( window.JSON && window.JSON.parse ) {
+            return window.JSON.parse( data );
+        }
+
+        if ( data === null ) {
+            return data;
+        }
+
+        if ( typeof data === "string" ) {
+
+            // Make sure leading/trailing whitespace is removed (IE can't handle it)
+            data = jQuery.trim( data );
+
+            if ( data ) {
+                // Make sure the incoming data is actual JSON
+                // Logic borrowed from http://json.org/json2.js
+                if ( rvalidchars.test( data.replace( rvalidescape, "@" )
+                    .replace( rvalidtokens, "]" )
+                    .replace( rvalidbraces, "")) ) {
+
+                    return ( new Function( "return " + data ) )();
+                }
+            }
+        }
+
+        jQuery.error( "Invalid JSON: " + data );
+    },
+
+    // Cross-browser xml parsing
+    parseXML: function( data ) {
+        var xml, tmp;
+        if ( !data || typeof data !== "string" ) {
+            return null;
+        }
+        try {
+            if ( window.DOMParser ) { // Standard
+                tmp = new DOMParser();
+                xml = tmp.parseFromString( data , "text/xml" );
+            } else { // IE
+                xml = new ActiveXObject( "Microsoft.XMLDOM" );
+                xml.async = "false";
+                xml.loadXML( data );
+            }
+        } catch( e ) {
+            xml = undefined;
+        }
+        if ( !xml || !xml.documentElement || xml.getElementsByTagName( "parsererror" ).length ) {
+            jQuery.error( "Invalid XML: " + data );
+        }
+        return xml;
+    },
+
+    noop: function() {},
+
+    // Evaluates a script in a global context
+    // Workarounds based on findings by Jim Driscoll
+    // http://weblogs.java.net/blog/driscoll/archive/2009/09/08/eval-javascript-global-context
+    globalEval: function( data ) {
+        if ( data && jQuery.trim( data ) ) {
+            // We use execScript on Internet Explorer
+            // We use an anonymous function so that context is window
+            // rather than jQuery in Firefox
+            ( window.execScript || function( data ) {
+                window[ "eval" ].call( window, data );
+            } )( data );
+        }
+    },
+
+    // Convert dashed to camelCase; used by the css and data modules
+    // Microsoft forgot to hump their vendor prefix (#9572)
+    camelCase: function( string ) {
+        return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
+    },
+
+    nodeName: function( elem, name ) {
+        return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
+    },
+
+    // args is for internal usage only
+    each: function( obj, callback, args ) {
+        var value,
+            i = 0,
+            length = obj.length,
+            isArray = isArraylike( obj );
+
+        if ( args ) {
+            if ( isArray ) {
+                for ( ; i < length; i++ ) {
+                    value = callback.apply( obj[ i ], args );
+
+                    if ( value === false ) {
+                        break;
+                    }
+                }
+            } else {
+                for ( i in obj ) {
+                    value = callback.apply( obj[ i ], args );
+
+                    if ( value === false ) {
+                        break;
+                    }
+                }
+            }
+
+        // A special, fast, case for the most common use of each
+        } else {
+            if ( isArray ) {
+                for ( ; i < length; i++ ) {
+                    value = callback.call( obj[ i ], i, obj[ i ] );
+
+                    if ( value === false ) {
+                        break;
+                    }
+                }
+            } else {
+                for ( i in obj ) {
+                    value = callback.call( obj[ i ], i, obj[ i ] );
+
+                    if ( value === false ) {
+                        break;
+                    }
+                }
+            }
+        }
+
+        return obj;
+    },
+
+    // Use native String.trim function wherever possible
+    trim: core_trim && !core_trim.call("\uFEFF\xA0") ?
+        function( text ) {
+            return text == null ?
+                "" :
+                core_trim.call( text );
+        } :
+
+        // Otherwise use our own trimming functionality
+        function( text ) {
+            return text == null ?
+                "" :
+                ( text + "" ).replace( rtrim, "" );
+        },
+
+    // results is for internal usage only
+    makeArray: function( arr, results ) {
+        var ret = results || [];
+
+        if ( arr != null ) {
+            if ( isArraylike( Object(arr) ) ) {
+                jQuery.merge( ret,
+                    typeof arr === "string" ?
+                    [ arr ] : arr
+                );
+            } else {
+                core_push.call( ret, arr );
+            }
+        }
+
+        return ret;
+    },
+
+    inArray: function( elem, arr, i ) {
+        var len;
+
+        if ( arr ) {
+            if ( core_indexOf ) {
+                return core_indexOf.call( arr, elem, i );
+            }
+
+            len = arr.length;
+            i = i ? i < 0 ? Math.max( 0, len + i ) : i : 0;
+
+            for ( ; i < len; i++ ) {
+                // Skip accessing in sparse arrays
+                if ( i in arr && arr[ i ] === elem ) {
+                    return i;
+                }
+            }
+        }
+
+        return -1;
+    },
+
+    merge: function( first, second ) {
+        var l = second.length,
+            i = first.length,
+            j = 0;
+
+        if ( typeof l === "number" ) {
+            for ( ; j < l; j++ ) {
+                first[ i++ ] = second[ j ];
+            }
+        } else {
+            while ( second[j] !== undefined ) {
+                first[ i++ ] = second[ j++ ];
+            }
+        }
+
+        first.length = i;
+
+        return first;
+    },
+
+    grep: function( elems, callback, inv ) {
+        var retVal,
+            ret = [],
+            i = 0,
+            length = elems.length;
+        inv = !!inv;
+
+        // Go through the array, only saving the items
+        // that pass the validator function
+        for ( ; i < length; i++ ) {
+            retVal = !!callback( elems[ i ], i );
+            if ( inv !== retVal ) {
+                ret.push( elems[ i ] );
+            }
+        }
+
+        return ret;
+    },
+
+    // arg is for internal usage only
+    map: function( elems, callback, arg ) {
+        var value,
+            i = 0,
+            length = elems.length,
+            isArray = isArraylike( elems ),
+            ret = [];
+
+        // Go through the array, translating each of the items to their
+        if ( isArray ) {
+            for ( ; i < length; i++ ) {
+                value = callback( elems[ i ], i, arg );
+
+                if ( value != null ) {
+                    ret[ ret.length ] = value;
+                }
+            }
+
+        // Go through every key on the object,
+        } else {
+            for ( i in elems ) {
+                value = callback( elems[ i ], i, arg );
+
+                if ( value != null ) {
+                    ret[ ret.length ] = value;
+                }
+            }
+        }
+
+        // Flatten any nested arrays
+        return core_concat.apply( [], ret );
+    },
+
+    // A global GUID counter for objects
+    guid: 1,
+
+    // Bind a function to a context, optionally partially applying any
+    // arguments.
+    proxy: function( fn, context ) {
+        var tmp, args, proxy;
+
+        if ( typeof context === "string" ) {
+            tmp = fn[ context ];
+            context = fn;
+            fn = tmp;
+        }
+
+        // Quick check to determine if target is callable, in the spec
+        // this throws a TypeError, but we will just return undefined.
+        if ( !jQuery.isFunction( fn ) ) {
+            return undefined;
+        }
+
+        // Simulated bind
+        args = core_slice.call( arguments, 2 );
+        proxy = function() {
+            return fn.apply( context || this, args.concat( core_slice.call( arguments ) ) );
+        };
+
+        // Set the guid of unique handler to the same of original handler, so it can be removed
+        proxy.guid = fn.guid = fn.guid || jQuery.guid++;
+
+        return proxy;
+    },
+
+    // Multifunctional method to get and set values of a collection
+    // The value/s can optionally be executed if it's a function
+    access: function( elems, fn, key, value, chainable, emptyGet, raw ) {
+        var i = 0,
+            length = elems.length,
+            bulk = key == null;
+
+        // Sets many values
+        if ( jQuery.type( key ) === "object" ) {
+            chainable = true;
+            for ( i in key ) {
+                jQuery.access( elems, fn, i, key[i], true, emptyGet, raw );
+            }
+
+        // Sets one value
+        } else if ( value !== undefined ) {
+            chainable = true;
+
+            if ( !jQuery.isFunction( value ) ) {
+                raw = true;
+            }
+
+            if ( bulk ) {
+                // Bulk operations run against the entire set
+                if ( raw ) {
+                    fn.call( elems, value );
+                    fn = null;
+
+                // ...except when executing function values
+                } else {
+                    bulk = fn;
+                    fn = function( elem, key, value ) {
+                        return bulk.call( jQuery( elem ), value );
+                    };
+                }
+            }
+
+            if ( fn ) {
+                for ( ; i < length; i++ ) {
+                    fn( elems[i], key, raw ? value : value.call( elems[i], i, fn( elems[i], key ) ) );
+                }
+            }
+        }
+
+        return chainable ?
+            elems :
+
+            // Gets
+            bulk ?
+                fn.call( elems ) :
+                length ? fn( elems[0], key ) : emptyGet;
+    },
+
+    now: function() {
+        return ( new Date() ).getTime();
+    }
+});
+
+jQuery.ready.promise = function( obj ) {
+    if ( !readyList ) {
+
+        readyList = jQuery.Deferred();
+
+        // Catch cases where $(document).ready() is called after the browser event has already occurred.
+        // we once tried to use readyState "interactive" here, but it caused issues like the one
+        // discovered by ChrisS here: http://bugs.jquery.com/ticket/12282#comment:15
+        if ( document.readyState === "complete" ) {
+            // Handle it asynchronously to allow scripts the opportunity to delay ready
+            setTimeout( jQuery.ready );
+
+        // Standards-based browsers support DOMContentLoaded
+        } else if ( document.addEventListener ) {
+            // Use the handy event callback
+            document.addEventListener( "DOMContentLoaded", DOMContentLoaded, false );
+
+            // A fallback to window.onload, that will always work
+            window.addEventListener( "load", jQuery.ready, false );
+
+        // If IE event model is used
+        } else {
+            // Ensure firing before onload, maybe late but safe also for iframes
+            document.attachEvent( "onreadystatechange", DOMContentLoaded );
+
+            // A fallback to window.onload, that will always work
+            window.attachEvent( "onload", jQuery.ready );
+
+            // If IE and not a frame
+            // continually check to see if the document is ready
+            var top = false;
+
+            try {
+                top = window.frameElement == null && document.documentElement;
+            } catch(e) {}
+
+            if ( top && top.doScroll ) {
+                (function doScrollCheck() {
+                    if ( !jQuery.isReady ) {
+
+                        try {
+                            // Use the trick by Diego Perini
+                            // http://javascript.nwbox.com/IEContentLoaded/
+                            top.doScroll("left");
+                        } catch(e) {
+                            return setTimeout( doScrollCheck, 50 );
+                        }
+
+                        // and execute any waiting functions
+                        jQuery.ready();
+                    }
+                })();
+            }
+        }
+    }
+    return readyList.promise( obj );
+};
+
+// Populate the class2type map
+jQuery.each("Boolean Number String Function Array Date RegExp Object Error".split(" "), function(i, name) {
+    class2type[ "[object " + name + "]" ] = name.toLowerCase();
+});
+
+function isArraylike( obj ) {
+    var length = obj.length,
+        type = jQuery.type( obj );
+
+    if ( jQuery.isWindow( obj ) ) {
+        return false;
+    }
+
+    if ( obj.nodeType === 1 && length ) {
+        return true;
+    }
+
+    return type === "array" || type !== "function" &&
+        ( length === 0 ||
+        typeof length === "number" && length > 0 && ( length - 1 ) in obj );
+}
+
+// All jQuery objects should point back to these
+rootjQuery = jQuery(document);
+// String to Object options format cache
+var optionsCache = {};
+
+// Convert String-formatted options into Object-formatted ones and store in cache
+function createOptions( options ) {
+    var object = optionsCache[ options ] = {};
+    jQuery.each( options.match( core_rnotwhite ) || [], function( _, flag ) {
+        object[ flag ] = true;
+    });
+    return object;
+}
+
+/*
+ * Create a callback list using the following parameters:
+ *
+ *  options: an optional list of space-separated options that will change how
+ *          the callback list behaves or a more traditional option object
+ *
+ * By default a callback list will act like an event callback list and can be
+ * "fired" multiple times.
+ *
+ * Possible options:
+ *
+ *  once:           will ensure the callback list can only be fired once (like a Deferred)
+ *
+ *  memory:         will keep track of previous values and will call any callback added
+ *                  after the list has been fired right away with the latest "memorized"
+ *                  values (like a Deferred)
+ *
+ *  unique:         will ensure a callback can only be added once (no duplicate in the list)
+ *
+ *  stopOnFalse:    interrupt callings when a callback returns false
+ *
+ */
+jQuery.Callbacks = function( options ) {
+
+    // Convert options from String-formatted to Object-formatted if needed
+    // (we check in cache first)
+    options = typeof options === "string" ?
+        ( optionsCache[ options ] || createOptions( options ) ) :
+        jQuery.extend( {}, options );
+
+    var // Last fire value (for non-forgettable lists)
+        memory,
+        // Flag to know if list was already fired
+        fired,
+        // Flag to know if list is currently firing
+        firing,
+        // First callback to fire (used internally by add and fireWith)
+        firingStart,
+        // End of the loop when firing
+        firingLength,
+        // Index of currently firing callback (modified by remove if needed)
+        firingIndex,
+        // Actual callback list
+        list = [],
+        // Stack of fire calls for repeatable lists
+        stack = !options.once && [],
+        // Fire callbacks
+        fire = function( data ) {
+            memory = options.memory && data;
+            fired = true;
+            firingIndex = firingStart || 0;
+            firingStart = 0;
+            firingLength = list.length;
+            firing = true;
+            for ( ; list && firingIndex < firingLength; firingIndex++ ) {
+                if ( list[ firingIndex ].apply( data[ 0 ], data[ 1 ] ) === false && options.stopOnFalse ) {
+                    memory = false; // To prevent further calls using add
+                    break;
+                }
+            }
+            firing = false;
+            if ( list ) {
+                if ( stack ) {
+                    if ( stack.length ) {
+                        fire( stack.shift() );
+                    }
+                } else if ( memory ) {
+                    list = [];
+                } else {
+                    self.disable();
+                }
+            }
+        },
+        // Actual Callbacks object
+        self = {
+            // Add a callback or a collection of callbacks to the list
+            add: function() {
+                if ( list ) {
+                    // First, we save the current length
+                    var start = list.length;
+                    (function add( args ) {
+                        jQuery.each( args, function( _, arg ) {
+                            var type = jQuery.type( arg );
+                            if ( type === "function" ) {
+                                if ( !options.unique || !self.has( arg ) ) {
+                                    list.push( arg );
+                                }
+                            } else if ( arg && arg.length && type !== "string" ) {
+                                // Inspect recursively
+                                add( arg );
+                            }
+                        });
+                    })( arguments );
+                    // Do we need to add the callbacks to the
+                    // current firing batch?
+                    if ( firing ) {
+                        firingLength = list.length;
+                    // With memory, if we're not firing then
+                    // we should call right away
+                    } else if ( memory ) {
+                        firingStart = start;
+                        fire( memory );
+                    }
+                }
+                return this;
+            },
+            // Remove a callback from the list
+            remove: function() {
+                if ( list ) {
+                    jQuery.each( arguments, function( _, arg ) {
+                        var index;
+                        while( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
+                            list.splice( index, 1 );
+                            // Handle firing indexes
+                            if ( firing ) {
+                                if ( index <= firingLength ) {
+                                    firingLength--;
+                                }
+                                if ( index <= firingIndex ) {
+                                    firingIndex--;
+                                }
+                            }
+                        }
+                    });
+                }
+                return this;
+            },
+            // Control if a given callback is in the list
+            has: function( fn ) {
+                return jQuery.inArray( fn, list ) > -1;
+            },
+            // Remove all callbacks from the list
+            empty: function() {
+                list = [];
+                return this;
+            },
+            // Have the list do nothing anymore
+            disable: function() {
+                list = stack = memory = undefined;
+                return this;
+            },
+            // Is it disabled?
+            disabled: function() {
+                return !list;
+            },
+            // Lock the list in its current state
+            lock: function() {
+                stack = undefined;
+                if ( !memory ) {
+                    self.disable();
+                }
+                return this;
+            },
+            // Is it locked?
+            locked: function() {
+                return !stack;
+            },
+            // Call all callbacks with the given context and arguments
+            fireWith: function( context, args ) {
+                args = args || [];
+                args = [ context, args.slice ? args.slice() : args ];
+                if ( list && ( !fired || stack ) ) {
+                    if ( firing ) {
+                        stack.push( args );
+                    } else {
+                        fire( args );
+                    }
+                }
+                return this;
+            },
+            // Call all the callbacks with the given arguments
+            fire: function() {
+                self.fireWith( this, arguments );
+                return this;
+            },
+            // To know if the callbacks have already been called at least once
+            fired: function() {
+                return !!fired;
+            }
+        };
+
+    return self;
+};
+jQuery.extend({
+
+    Deferred: function( func ) {
+        var tuples = [
+                // action, add listener, listener list, final state
+                [ "resolve", "done", jQuery.Callbacks("once memory"), "resolved" ],
+                [ "reject", "fail", jQuery.Callbacks("once memory"), "rejected" ],
+                [ "notify", "progress", jQuery.Callbacks("memory") ]
+            ],
+            state = "pending",
+            promise = {
+                state: function() {
+                    return state;
+                },
+                always: function() {
+                    deferred.done( arguments ).fail( arguments );
+                    return this;
+                },
+                then: function( /* fnDone, fnFail, fnProgress */ ) {
+                    var fns = arguments;
+                    return jQuery.Deferred(function( newDefer ) {
+                        jQuery.each( tuples, function( i, tuple ) {
+                            var action = tuple[ 0 ],
+                                fn = jQuery.isFunction( fns[ i ] ) && fns[ i ];
+                            // deferred[ done | fail | progress ] for forwarding actions to newDefer
+                            deferred[ tuple[1] ](function() {
+                                var returned = fn && fn.apply( this, arguments );
+                                if ( returned && jQuery.isFunction( returned.promise ) ) {
+                                    returned.promise()
+                                        .done( newDefer.resolve )
+                                        .fail( newDefer.reject )
+                                        .progress( newDefer.notify );
+                                } else {
+                                    newDefer[ action + "With" ]( this === promise ? newDefer.promise() : this, fn ? [ returned ] : arguments );
+                                }
+                            });
+                        });
+                        fns = null;
+                    }).promise();
+                },
+                // Get a promise for this deferred
+                // If obj is provided, the promise aspect is added to the object
+                promise: function( obj ) {
+                    return obj != null ? jQuery.extend( obj, promise ) : promise;
+                }
+            },
+            deferred = {};
+
+        // Keep pipe for back-compat
+        promise.pipe = promise.then;
+
+        // Add list-specific methods
+        jQuery.each( tuples, function( i, tuple ) {
+            var list = tuple[ 2 ],
+                stateString = tuple[ 3 ];
+
+            // promise[ done | fail | progress ] = list.add
+            promise[ tuple[1] ] = list.add;
+
+            // Handle state
+            if ( stateString ) {
+                list.add(function() {
+                    // state = [ resolved | rejected ]
+                    state = stateString;
+
+                // [ reject_list | resolve_list ].disable; progress_list.lock
+                }, tuples[ i ^ 1 ][ 2 ].disable, tuples[ 2 ][ 2 ].lock );
+            }
+
+            // deferred[ resolve | reject | notify ]
+            deferred[ tuple[0] ] = function() {
+                deferred[ tuple[0] + "With" ]( this === deferred ? promise : this, arguments );
+                return this;
+            };
+            deferred[ tuple[0] + "With" ] = list.fireWith;
+        });
+
+        // Make the deferred a promise
+        promise.promise( deferred );
+
+        // Call given func if any
+        if ( func ) {
+            func.call( deferred, deferred );
+        }
+
+        // All done!
+        return deferred;
+    },
+
+    // Deferred helper
+    when: function( subordinate /* , ..., subordinateN */ ) {
+        var i = 0,
+            resolveValues = core_slice.call( arguments ),
+            length = resolveValues.length,
+
+            // the count of uncompleted subordinates
+            remaining = length !== 1 || ( subordinate && jQuery.isFunction( subordinate.promise ) ) ? length : 0,
+
+            // the master Deferred. If resolveValues consist of only a single Deferred, just use that.
+            deferred = remaining === 1 ? subordinate : jQuery.Deferred(),
+
+            // Update function for both resolve and progress values
+            updateFunc = function( i, contexts, values ) {
+                return function( value ) {
+                    contexts[ i ] = this;
+                    values[ i ] = arguments.length > 1 ? core_slice.call( arguments ) : value;
+                    if( values === progressValues ) {
+                        deferred.notifyWith( contexts, values );
+                    } else if ( !( --remaining ) ) {
+                        deferred.resolveWith( contexts, values );
+                    }
+                };
+            },
+
+            progressValues, progressContexts, resolveContexts;
+
+        // add listeners to Deferred subordinates; treat others as resolved
+        if ( length > 1 ) {
+            progressValues = new Array( length );
+            progressContexts = new Array( length );
+            resolveContexts = new Array( length );
+            for ( ; i < length; i++ ) {
+                if ( resolveValues[ i ] && jQuery.isFunction( resolveValues[ i ].promise ) ) {
+                    resolveValues[ i ].promise()
+                        .done( updateFunc( i, resolveContexts, resolveValues ) )
+                        .fail( deferred.reject )
+                        .progress( updateFunc( i, progressContexts, progressValues ) );
+                } else {
+                    --remaining;
+                }
+            }
+        }
+
+        // if we're not waiting on anything, resolve the master
+        if ( !remaining ) {
+            deferred.resolveWith( resolveContexts, resolveValues );
+        }
+
+        return deferred.promise();
+    }
+});
+jQuery.support = (function() {
+
+    var support, all, a, select, opt, input, fragment, eventName, isSupported, i,
+        div = document.createElement("div");
+
+    // Setup
+    div.setAttribute( "className", "t" );
+    div.innerHTML = "  <link/><table></table><a href='/a'>a</a><input type='checkbox'/>";
+
+    // Support tests won't run in some limited or non-browser environments
+    all = div.getElementsByTagName("*");
+    a = div.getElementsByTagName("a")[ 0 ];
+    if ( !all || !a || !all.length ) {
+        return {};
+    }
+
+    // First batch of tests
+    select = document.createElement("select");
+    opt = select.appendChild( document.createElement("option") );
+    input = div.getElementsByTagName("input")[ 0 ];
+
+    a.style.cssText = "top:1px;float:left;opacity:.5";
+    support = {
+        // Test setAttribute on camelCase class. If it works, we need attrFixes when doing get/setAttribute (ie6/7)
+        getSetAttribute: div.className !== "t",
+
+        // IE strips leading whitespace when .innerHTML is used
+        leadingWhitespace: div.firstChild.nodeType === 3,
+
+        // Make sure that tbody elements aren't automatically inserted
+        // IE will insert them into empty tables
+        tbody: !div.getElementsByTagName("tbody").length,
+
+        // Make sure that link elements get serialized correctly by innerHTML
+        // This requires a wrapper element in IE
+        htmlSerialize: !!div.getElementsByTagName("link").length,
+
+        // Get the style information from getAttribute
+        // (IE uses .cssText instead)
+        style: /top/.test( a.getAttribute("style") ),
+
+        // Make sure that URLs aren't manipulated
+        // (IE normalizes it by default)
+        hrefNormalized: a.getAttribute("href") === "/a",
+
+        // Make sure that element opacity exists
+        // (IE uses filter instead)
+        // Use a regex to work around a WebKit issue. See #5145
+        opacity: /^0.5/.test( a.style.opacity ),
+
+        // Verify style float existence
+        // (IE uses styleFloat instead of cssFloat)
+        cssFloat: !!a.style.cssFloat,
+
+        // Check the default checkbox/radio value ("" on WebKit; "on" elsewhere)
+        checkOn: !!input.value,
+
+        // Make sure that a selected-by-default option has a working selected property.
+        // (WebKit defaults to false instead of true, IE too, if it's in an optgroup)
+        optSelected: opt.selected,
+
+        // Tests for enctype support on a form (#6743)
+        enctype: !!document.createElement("form").enctype,
+
+        // Makes sure cloning an html5 element does not cause problems
+        // Where outerHTML is undefined, this still works
+        html5Clone: document.createElement("nav").cloneNode( true ).outerHTML !== "<:nav></:nav>",
+
+        // jQuery.support.boxModel DEPRECATED in 1.8 since we don't support Quirks Mode
+        boxModel: document.compatMode === "CSS1Compat",
+
+        // Will be defined later
+        deleteExpando: true,
+        noCloneEvent: true,
+        inlineBlockNeedsLayout: false,
+        shrinkWrapBlocks: false,
+        reliableMarginRight: true,
+        boxSizingReliable: true,
+        pixelPosition: false
+    };
+
+    // Make sure checked status is properly cloned
+    input.checked = true;
+    support.noCloneChecked = input.cloneNode( true ).checked;
+
+    // Make sure that the options inside disabled selects aren't marked as disabled
+    // (WebKit marks them as disabled)
+    select.disabled = true;
+    support.optDisabled = !opt.disabled;
+
+    // Support: IE<9
+    try {
+        delete div.test;
+    } catch( e ) {
+        support.deleteExpando = false;
+    }
+
+    // Check if we can trust getAttribute("value")
+    input = document.createElement("input");
+    input.setAttribute( "value", "" );
+    support.input = input.getAttribute( "value" ) === "";
+
+    // Check if an input maintains its value after becoming a radio
+    input.value = "t";
+    input.setAttribute( "type", "radio" );
+    support.radioValue = input.value === "t";
+
+    // #11217 - WebKit loses check when the name is after the checked attribute
+    input.setAttribute( "checked", "t" );
+    input.setAttribute( "name", "t" );
+
+    fragment = document.createDocumentFragment();
+    fragment.appendChild( input );
+
+    // Check if a disconnected checkbox will retain its checked
+    // value of true after appended to the DOM (IE6/7)
+    support.appendChecked = input.checked;
+
+    // WebKit doesn't clone checked state correctly in fragments
+    support.checkClone = fragment.cloneNode( true ).cloneNode( true ).lastChild.checked;
+
+    // Support: IE<9
+    // Opera does not clone events (and typeof div.attachEvent === undefined).
+    // IE9-10 clones events bound via attachEvent, but they don't trigger with .click()
+    if ( div.attachEvent ) {
+        div.attachEvent( "onclick", function() {
+            support.noCloneEvent = false;
+        });
+
+        div.cloneNode( true ).click();
+    }
+
+    // Support: IE<9 (lack submit/change bubble), Firefox 17+ (lack focusin event)
+    // Beware of CSP restrictions (https://developer.mozilla.org/en/Security/CSP), test/csp.php
+    for ( i in { submit: true, change: true, focusin: true }) {
+        div.setAttribute( eventName = "on" + i, "t" );
+
+        support[ i + "Bubbles" ] = eventName in window || div.attributes[ eventName ].expando === false;
+    }
+
+    div.style.backgroundClip = "content-box";
+    div.cloneNode( true ).style.backgroundClip = "";
+    support.clearCloneStyle = div.style.backgroundClip === "content-box";
+
+    // Run tests that need a body at doc ready
+    jQuery(function() {
+        var container, marginDiv, tds,
+            divReset = "padding:0;margin:0;border:0;display:block;box-sizing:content-box;-moz-box-sizing:content-box;-webkit-box-sizing:content-box;",
+            body = document.getElementsByTagName("body")[0];
+
+        if ( !body ) {
+            // Return for frameset docs that don't have a body
+            return;
+        }
+
+        container = document.createElement("div");
+        container.style.cssText = "border:0;width:0;height:0;position:absolute;top:0;left:-9999px;margin-top:1px";
+
+        body.appendChild( container ).appendChild( div );
+
+        // Support: IE8
+        // Check if table cells still have offsetWidth/Height when they are set
+        // to display:none and there are still other visible table cells in a
+        // table row; if so, offsetWidth/Height are not reliable for use when
+        // determining if an element has been hidden directly using
+        // display:none (it is still safe to use offsets if a parent element is
+        // hidden; don safety goggles and see bug #4512 for more information).
+        div.innerHTML = "<table><tr><td></td><td>t</td></tr></table>";
+        tds = div.getElementsByTagName("td");
+        tds[ 0 ].style.cssText = "padding:0;margin:0;border:0;display:none";
+        isSupported = ( tds[ 0 ].offsetHeight === 0 );
+
+        tds[ 0 ].style.display = "";
+        tds[ 1 ].style.display = "none";
+
+        // Support: IE8
+        // Check if empty table cells still have offsetWidth/Height
+        support.reliableHiddenOffsets = isSupported && ( tds[ 0 ].offsetHeight === 0 );
+
+        // Check box-sizing and margin behavior
+        div.innerHTML = "";
+        div.style.cssText = "box-sizing:border-box;-moz-box-sizing:border-box;-webkit-box-sizing:border-box;padding:1px;border:1px;display:block;width:4px;margin-top:1%;position:absolute;top:1%;";
+        support.boxSizing = ( div.offsetWidth === 4 );
+        support.doesNotIncludeMarginInBodyOffset = ( body.offsetTop !== 1 );
+
+        // Use window.getComputedStyle because jsdom on node.js will break without it.
+        if ( window.getComputedStyle ) {
+            support.pixelPosition = ( window.getComputedStyle( div, null ) || {} ).top !== "1%";
+            support.boxSizingReliable = ( window.getComputedStyle( div, null ) || { width: "4px" } ).width === "4px";
+
+            // Check if div with explicit width and no margin-right incorrectly
+            // gets computed margin-right based on width of container. (#3333)
+            // Fails in WebKit before Feb 2011 nightlies
+            // WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right
+            marginDiv = div.appendChild( document.createElement("div") );
+            marginDiv.style.cssText = div.style.cssText = divReset;
+            marginDiv.style.marginRight = marginDiv.style.width = "0";
+            div.style.width = "1px";
+
+            support.reliableMarginRight =
+                !parseFloat( ( window.getComputedStyle( marginDiv, null ) || {} ).marginRight );
+        }
+
+        if ( typeof div.style.zoom !== "undefined" ) {
+            // Support: IE<8
+            // Check if natively block-level elements act like inline-block
+            // elements when setting their display to 'inline' and giving
+            // them layout
+            div.innerHTML = "";
+            div.style.cssText = divReset + "width:1px;padding:1px;display:inline;zoom:1";
+            support.inlineBlockNeedsLayout = ( div.offsetWidth === 3 );
+
+            // Support: IE6
+            // Check if elements with layout shrink-wrap their children
+            div.style.display = "block";
+            div.innerHTML = "<div></div>";
+            div.firstChild.style.width = "5px";
+            support.shrinkWrapBlocks = ( div.offsetWidth !== 3 );
+
+            // Prevent IE 6 from affecting layout for positioned elements #11048
+            // Prevent IE from shrinking the body in IE 7 mode #12869
+            body.style.zoom = 1;
+        }
+
+        body.removeChild( container );
+
+        // Null elements to avoid leaks in IE
+        container = div = tds = marginDiv = null;
+    });
+
+    // Null elements to avoid leaks in IE
+    all = select = fragment = opt = a = input = null;
+
+    return support;
+})();
+
+var rbrace = /(?:\{[\s\S]*\}|\[[\s\S]*\])$/,
+    rmultiDash = /([A-Z])/g;
+    
+function internalData( elem, name, data, pvt /* Internal Use Only */ ){
+    if ( !jQuery.acceptData( elem ) ) {
+        return;
+    }
+
+    var thisCache, ret,
+        internalKey = jQuery.expando,
+        getByName = typeof name === "string",
+
+        // We have to handle DOM nodes and JS objects differently because IE6-7
+        // can't GC object references properly across the DOM-JS boundary
+        isNode = elem.nodeType,
+
+        // Only DOM nodes need the global jQuery cache; JS object data is
+        // attached directly to the object so GC can occur automatically
+        cache = isNode ? jQuery.cache : elem,
+
+        // Only defining an ID for JS objects if its cache already exists allows
+        // the code to shortcut on the same path as a DOM node with no cache
+        id = isNode ? elem[ internalKey ] : elem[ internalKey ] && internalKey;
+
+    // Avoid doing any more work than we need to when trying to get data on an
+    // object that has no data at all
+    if ( (!id || !cache[id] || (!pvt && !cache[id].data)) && getByName && data === undefined ) {
+        return;
+    }
+
+    if ( !id ) {
+        // Only DOM nodes need a new unique ID for each element since their data
+        // ends up in the global cache
+        if ( isNode ) {
+            elem[ internalKey ] = id = core_deletedIds.pop() || jQuery.guid++;
+        } else {
+            id = internalKey;
+        }
+    }
+
+    if ( !cache[ id ] ) {
+        cache[ id ] = {};
+
+        // Avoids exposing jQuery metadata on plain JS objects when the object
+        // is serialized using JSON.stringify
+        if ( !isNode ) {
+            cache[ id ].toJSON = jQuery.noop;
+        }
+    }
+
+    // An object can be passed to jQuery.data instead of a key/value pair; this gets
+    // shallow copied over onto the existing cache
+    if ( typeof name === "object" || typeof name === "function" ) {
+        if ( pvt ) {
+            cache[ id ] = jQuery.extend( cache[ id ], name );
+        } else {
+            cache[ id ].data = jQuery.extend( cache[ id ].data, name );
+        }
+    }
+
+    thisCache = cache[ id ];
+
+    // jQuery data() is stored in a separate object inside the object's internal data
+    // cache in order to avoid key collisions between internal data and user-defined
+    // data.
+    if ( !pvt ) {
+        if ( !thisCache.data ) {
+            thisCache.data = {};
+        }
+
+        thisCache = thisCache.data;
+    }
+
+    if ( data !== undefined ) {
+        thisCache[ jQuery.camelCase( name ) ] = data;
+    }
+
+    // Check for both converted-to-camel and non-converted data property names
+    // If a data property was specified
+    if ( getByName ) {
+
+        // First Try to find as-is property data
+        ret = thisCache[ name ];
+
+        // Test for null|undefined property data
+        if ( ret == null ) {
+
+            // Try to find the camelCased property
+            ret = thisCache[ jQuery.camelCase( name ) ];
+        }
+    } else {
+        ret = thisCache;
+    }
+
+    return ret;
+}
+
+function internalRemoveData( elem, name, pvt /* For internal use only */ ){
+    if ( !jQuery.acceptData( elem ) ) {
+        return;
+    }
+
+    var thisCache, i, l,
+
+        isNode = elem.nodeType,
+
+        // See jQuery.data for more information
+        cache = isNode ? jQuery.cache : elem,
+        id = isNode ? elem[ jQuery.expando ] : jQuery.expando;
+
+    // If there is already no cache entry for this object, there is no
+    // purpose in continuing
+    if ( !cache[ id ] ) {
+        return;
+    }
+
+    if ( name ) {
+
+        thisCache = pvt ? cache[ id ] : cache[ id ].data;
+
+        if ( thisCache ) {
+
+            // Support array or space separated string names for data keys
+            if ( !jQuery.isArray( name ) ) {
+
+                // try the string as a key before any manipulation
+                if ( name in thisCache ) {
+                    name = [ name ];
+                } else {
+
+                    // split the camel cased version by spaces unless a key with the spaces exists
+                    name = jQuery.camelCase( name );
+                    if ( name in thisCache ) {
+                        name = [ name ];
+                    } else {
+                        name = name.split(" ");
+                    }
+                }
+            } else {
+                // If "name" is an array of keys...
+                // When data is initially created, via ("key", "val") signature,
+                // keys will be converted to camelCase.
+                // Since there is no way to tell _how_ a key was added, remove
+                // both plain key and camelCase key. #12786
+                // This will only penalize the array argument path.
+                name = name.concat( jQuery.map( name, jQuery.camelCase ) );
+            }
+
+            for ( i = 0, l = name.length; i < l; i++ ) {
+                delete thisCache[ name[i] ];
+            }
+
+            // If there is no data left in the cache, we want to continue
+            // and let the cache object itself get destroyed
+            if ( !( pvt ? isEmptyDataObject : jQuery.isEmptyObject )( thisCache ) ) {
+                return;
+            }
+        }
+    }
+
+    // See jQuery.data for more information
+    if ( !pvt ) {
+        delete cache[ id ].data;
+
+        // Don't destroy the parent cache unless the internal data object
+        // had been the only thing left in it
+        if ( !isEmptyDataObject( cache[ id ] ) ) {
+            return;
+        }
+    }
+
+    // Destroy the cache
+    if ( isNode ) {
+        jQuery.cleanData( [ elem ], true );
+
+    // Use delete when supported for expandos or `cache` is not a window per isWindow (#10080)
+    } else if ( jQuery.support.deleteExpando || cache != cache.window ) {
+        delete cache[ id ];
+
+    // When all else fails, null
+    } else {
+        cache[ id ] = null;
+    }
+}
+
+jQuery.extend({
+    cache: {},
+
+    // Unique for each copy of jQuery on the page
+    // Non-digits removed to match rinlinejQuery
+    expando: "jQuery" + ( core_version + Math.random() ).replace( /\D/g, "" ),
+
+    // The following elements throw uncatchable exceptions if you
+    // attempt to add expando properties to them.
+    noData: {
+        "embed": true,
+        // Ban all objects except for Flash (which handle expandos)
+        "object": "clsid:D27CDB6E-AE6D-11cf-96B8-444553540000",
+        "applet": true
+    },
+
+    hasData: function( elem ) {
+        elem = elem.nodeType ? jQuery.cache[ elem[jQuery.expando] ] : elem[ jQuery.expando ];
+        return !!elem && !isEmptyDataObject( elem );
+    },
+
+    data: function( elem, name, data ) {
+        return internalData( elem, name, data, false );
+    },
+
+    removeData: function( elem, name ) {
+        return internalRemoveData( elem, name, false );
+    },
+
+    // For internal use only.
+    _data: function( elem, name, data ) {
+        return internalData( elem, name, data, true );
+    },
+    
+    _removeData: function( elem, name ) {
+        return internalRemoveData( elem, name, true );
+    },
+
+    // A method for determining if a DOM node can handle the data expando
+    acceptData: function( elem ) {
+        var noData = elem.nodeName && jQuery.noData[ elem.nodeName.toLowerCase() ];
+
+        // nodes accept data unless otherwise specified; rejection can be conditional
+        return !noData || noData !== true && elem.getAttribute("classid") === noData;
+    }
+});
+
+jQuery.fn.extend({
+    data: function( key, value ) {
+        var attrs, name,
+            elem = this[0],
+            i = 0,
+            data = null;
+
+        // Gets all values
+        if ( key === undefined ) {
+            if ( this.length ) {
+                data = jQuery.data( elem );
+
+                if ( elem.nodeType === 1 && !jQuery._data( elem, "parsedAttrs" ) ) {
+                    attrs = elem.attributes;
+                    for ( ; i < attrs.length; i++ ) {
+                        name = attrs[i].name;
+
+                        if ( !name.indexOf( "data-" ) ) {
+                            name = jQuery.camelCase( name.substring(5) );
+
+                            dataAttr( elem, name, data[ name ] );
+                        }
+                    }
+                    jQuery._data( elem, "parsedAttrs", true );
+                }
+            }
+
+            return data;
+        }
+
+        // Sets multiple values
+        if ( typeof key === "object" ) {
+            return this.each(function() {
+                jQuery.data( this, key );
+            });
+        }
+
+        return jQuery.access( this, function( value ) {
+
+            if ( value === undefined ) {
+                // Try to fetch any internally stored data first
+                return elem ? dataAttr( elem, key, jQuery.data( elem, key ) ) : null;
+            }
+
+            this.each(function() {
+                jQuery.data( this, key, value );
+            });
+        }, null, value, arguments.length > 1, null, true );
+    },
+
+    removeData: function( key ) {
+        return this.each(function() {
+            jQuery.removeData( this, key );
+        });
+    }
+});
+
+function dataAttr( elem, key, data ) {
+    // If nothing was found internally, try to fetch any
+    // data from the HTML5 data-* attribute
+    if ( data === undefined && elem.nodeType === 1 ) {
+
+        var name = "data-" + key.replace( rmultiDash, "-$1" ).toLowerCase();
+
+        data = elem.getAttribute( name );
+
+        if ( typeof data === "string" ) {
+            try {
+                data = data === "true" ? true :
+                data === "false" ? false :
+                data === "null" ? null :
+                // Only convert to a number if it doesn't change the string
+                +data + "" === data ? +data :
+                rbrace.test( data ) ? jQuery.parseJSON( data ) :
+                    data;
+            } catch( e ) {}
+
+            // Make sure we set the data so it isn't changed later
+            jQuery.data( elem, key, data );
+
+        } else {
+            data = undefined;
+        }
+    }
+
+    return data;
+}
+
+// checks a cache object for emptiness
+function isEmptyDataObject( obj ) {
+    var name;
+    for ( name in obj ) {
+
+        // if the public data object is empty, the private is still empty
+        if ( name === "data" && jQuery.isEmptyObject( obj[name] ) ) {
+            continue;
+        }
+        if ( name !== "toJSON" ) {
+            return false;
+        }
+    }
+
+    return true;
+}
+jQuery.extend({
+    queue: function( elem, type, data ) {
+        var queue;
+
+        if ( elem ) {
+            type = ( type || "fx" ) + "queue";
+            queue = jQuery._data( elem, type );
+
+            // Speed up dequeue by getting out quickly if this is just a lookup
+            if ( data ) {
+                if ( !queue || jQuery.isArray(data) ) {
+                    queue = jQuery._data( elem, type, jQuery.makeArray(data) );
+                } else {
+                    queue.push( data );
+                }
+            }
+            return queue || [];
+        }
+    },
+
+    dequeue: function( elem, type ) {
+        type = type || "fx";
+
+        var queue = jQuery.queue( elem, type ),
+            startLength = queue.length,
+            fn = queue.shift(),
+            hooks = jQuery._queueHooks( elem, type ),
+            next = function() {
+                jQuery.dequeue( elem, type );
+            };
+
+        // If the fx queue is dequeued, always remove the progress sentinel
+        if ( fn === "inprogress" ) {
+            fn = queue.shift();
+            startLength--;
+        }
+
+        hooks.cur = fn;
+        if ( fn ) {
+
+            // Add a progress sentinel to prevent the fx queue from being
+            // automatically dequeued
+            if ( type === "fx" ) {
+                queue.unshift( "inprogress" );
+            }
+
+            // clear up the last queue stop function
+            delete hooks.stop;
+            fn.call( elem, next, hooks );
+        }
+
+        if ( !startLength && hooks ) {
+            hooks.empty.fire();
+        }
+    },
+
+    // not intended for public consumption - generates a queueHooks object, or returns the current one
+    _queueHooks: function( elem, type ) {
+        var key = type + "queueHooks";
+        return jQuery._data( elem, key ) || jQuery._data( elem, key, {
+            empty: jQuery.Callbacks("once memory").add(function() {
+                jQuery._removeData( elem, type + "queue" );
+                jQuery._removeData( elem, key );
+            })
+        });
+    }
+});
+
+jQuery.fn.extend({
+    queue: function( type, data ) {
+        var setter = 2;
+
+        if ( typeof type !== "string" ) {
+            data = type;
+            type = "fx";
+            setter--;
+        }
+
+        if ( arguments.length < setter ) {
+            return jQuery.queue( this[0], type );
+        }
+
+        return data === undefined ?
+            this :
+            this.each(function() {
+                var queue = jQuery.queue( this, type, data );
+
+                // ensure a hooks for this queue
+                jQuery._queueHooks( this, type );
+
+                if ( type === "fx" && queue[0] !== "inprogress" ) {
+                    jQuery.dequeue( this, type );
+                }
+            });
+    },
+    dequeue: function( type ) {
+        return this.each(function() {
+            jQuery.dequeue( this, type );
+        });
+    },
+    // Based off of the plugin by Clint Helfers, with permission.
+    // http://blindsignals.com/index.php/2009/07/jquery-delay/
+    delay: function( time, type ) {
+        time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;
+        type = type || "fx";
+
+        return this.queue( type, function( next, hooks ) {
+            var timeout = setTimeout( next, time );
+            hooks.stop = function() {
+                clearTimeout( timeout );
+            };
+        });
+    },
+    clearQueue: function( type ) {
+        return this.queue( type || "fx", [] );
+    },
+    // Get a promise resolved when queues of a certain type
+    // are emptied (fx is the type by default)
+    promise: function( type, obj ) {
+        var tmp,
+            count = 1,
+            defer = jQuery.Deferred(),
+            elements = this,
+            i = this.length,
+            resolve = function() {
+                if ( !( --count ) ) {
+                    defer.resolveWith( elements, [ elements ] );
+                }
+            };
+
+        if ( typeof type !== "string" ) {
+            obj = type;
+            type = undefined;
+        }
+        type = type || "fx";
+
+        while( i-- ) {
+            tmp = jQuery._data( elements[ i ], type + "queueHooks" );
+            if ( tmp && tmp.empty ) {
+                count++;
+                tmp.empty.add( resolve );
+            }
+        }
+        resolve();
+        return defer.promise( obj );
+    }
+});
+var nodeHook, boolHook,
+    rclass = /[\t\r\n]/g,
+    rreturn = /\r/g,
+    rfocusable = /^(?:input|select|textarea|button|object)$/i,
+    rclickable = /^(?:a|area)$/i,
+    rboolean = /^(?:checked|selected|autofocus|autoplay|async|controls|defer|disabled|hidden|loop|multiple|open|readonly|required|scoped)$/i,
+    ruseDefault = /^(?:checked|selected)$/i,
+    getSetAttribute = jQuery.support.getSetAttribute,
+    getSetInput = jQuery.support.input;
+
+jQuery.fn.extend({
+    attr: function( name, value ) {
+        return jQuery.access( this, jQuery.attr, name, value, arguments.length > 1 );
+    },
+
+    removeAttr: function( name ) {
+        return this.each(function() {
+            jQuery.removeAttr( this, name );
+        });
+    },
+
+    prop: function( name, value ) {
+        return jQuery.access( this, jQuery.prop, name, value, arguments.length > 1 );
+    },
+
+    removeProp: function( name ) {
+        name = jQuery.propFix[ name ] || name;
+        return this.each(function() {
+            // try/catch handles cases where IE balks (such as removing a property on window)
+            try {
+                this[ name ] = undefined;
+                delete this[ name ];
+            } catch( e ) {}
+        });
+    },
+
+    addClass: function( value ) {
+        var classes, elem, cur, clazz, j,
+            i = 0,
+            len = this.length,
+            proceed = typeof value === "string" && value;
+
+        if ( jQuery.isFunction( value ) ) {
+            return this.each(function( j ) {
+                jQuery( this ).addClass( value.call( this, j, this.className ) );
+            });
+        }
+
+        if ( proceed ) {
+            // The disjunction here is for better compressibility (see removeClass)
+            classes = ( value || "" ).match( core_rnotwhite ) || [];
+
+            for ( ; i < len; i++ ) {
+                elem = this[ i ];
+                cur = elem.nodeType === 1 && ( elem.className ?
+                    ( " " + elem.className + " " ).replace( rclass, " " ) :
+                    " "
+                );
+
+                if ( cur ) {
+                    j = 0;
+                    while ( (clazz = classes[j++]) ) {
+                        if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
+                            cur += clazz + " ";
+                        }
+                    }
+                    elem.className = jQuery.trim( cur );
+
+                }
+            }
+        }
+
+        return this;
+    },
+
+    removeClass: function( value ) {
+        var classes, elem, cur, clazz, j,
+            i = 0,
+            len = this.length,
+            proceed = arguments.length === 0 || typeof value === "string" && value;
+
+        if ( jQuery.isFunction( value ) ) {
+            return this.each(function( j ) {
+                jQuery( this ).removeClass( value.call( this, j, this.className ) );
+            });
+        }
+        if ( proceed ) {
+            classes = ( value || "" ).match( core_rnotwhite ) || [];
+
+            for ( ; i < len; i++ ) {
+                elem = this[ i ];
+                // This expression is here for better compressibility (see addClass)
+                cur = elem.nodeType === 1 && ( elem.className ?
+                    ( " " + elem.className + " " ).replace( rclass, " " ) :
+                    ""
+                );
+
+                if ( cur ) {
+                    j = 0;
+                    while ( (clazz = classes[j++]) ) {
+                        // Remove *all* instances
+                        while ( cur.indexOf( " " + clazz + " " ) >= 0 ) {
+                            cur = cur.replace( " " + clazz + " ", " " );
+                        }
+                    }
+                    elem.className = value ? jQuery.trim( cur ) : "";
+                }
+            }
+        }
+
+        return this;
+    },
+
+    toggleClass: function( value, stateVal ) {
+        var type = typeof value,
+            isBool = typeof stateVal === "boolean";
+
+        if ( jQuery.isFunction( value ) ) {
+            return this.each(function( i ) {
+                jQuery( this ).toggleClass( value.call(this, i, this.className, stateVal), stateVal );
+            });
+        }
+
+        return this.each(function() {
+            if ( type === "string" ) {
+                // toggle individual class names
+                var className,
+                    i = 0,
+                    self = jQuery( this ),
+                    state = stateVal,
+                    classNames = value.match( core_rnotwhite ) || [];
+
+                while ( (className = classNames[ i++ ]) ) {
+                    // check each className given, space separated list
+                    state = isBool ? state : !self.hasClass( className );
+                    self[ state ? "addClass" : "removeClass" ]( className );
+                }
+
+            // Toggle whole class name
+            } else if ( type === "undefined" || type === "boolean" ) {
+                if ( this.className ) {
+                    // store className if set
+                    jQuery._data( this, "__className__", this.className );
+                }
+
+                // If the element has a class name or if we're passed "false",
+                // then remove the whole classname (if there was one, the above saved it).
+                // Otherwise bring back whatever was previously saved (if anything),
+                // falling back to the empty string if nothing was stored.
+                this.className = this.className || value === false ? "" : jQuery._data( this, "__className__" ) || "";
+            }
+        });
+    },
+
+    hasClass: function( selector ) {
+        var className = " " + selector + " ",
+            i = 0,
+            l = this.length;
+        for ( ; i < l; i++ ) {
+            if ( this[i].nodeType === 1 && (" " + this[i].className + " ").replace(rclass, " ").indexOf( className ) >= 0 ) {
+                return true;
+            }
+        }
+
+        return false;
+    },
+
+    val: function( value ) {
+        var hooks, ret, isFunction,
+            elem = this[0];
+
+        if ( !arguments.length ) {
+            if ( elem ) {
+                hooks = jQuery.valHooks[ elem.type ] || jQuery.valHooks[ elem.nodeName.toLowerCase() ];
+
+                if ( hooks && "get" in hooks && (ret = hooks.get( elem, "value" )) !== undefined ) {
+                    return ret;
+                }
+
+                ret = elem.value;
+
+                return typeof ret === "string" ?
+                    // handle most common string cases
+                    ret.replace(rreturn, "") :
+                    // handle cases where value is null/undef or number
+                    ret == null ? "" : ret;
+            }
+
+            return;
+        }
+
+        isFunction = jQuery.isFunction( value );
+
+        return this.each(function( i ) {
+            var val,
+                self = jQuery(this);
+
+            if ( this.nodeType !== 1 ) {
+                return;
+            }
+
+            if ( isFunction ) {
+                val = value.call( this, i, self.val() );
+            } else {
+                val = value;
+            }
+
+            // Treat null/undefined as ""; convert numbers to string
+            if ( val == null ) {
+                val = "";
+            } else if ( typeof val === "number" ) {
+                val += "";
+            } else if ( jQuery.isArray( val ) ) {
+                val = jQuery.map(val, function ( value ) {
+                    return value == null ? "" : value + "";
+                });
+            }
+
+            hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];
+
+            // If set returns undefined, fall back to normal setting
+            if ( !hooks || !("set" in hooks) || hooks.set( this, val, "value" ) === undefined ) {
+                this.value = val;
+            }
+        });
+    }
+});
+
+jQuery.extend({
+    valHooks: {
+        option: {
+            get: function( elem ) {
+                // attributes.value is undefined in Blackberry 4.7 but
+                // uses .value. See #6932
+                var val = elem.attributes.value;
+                return !val || val.specified ? elem.value : elem.text;
+            }
+        },
+        select: {
+            get: function( elem ) {
+                var value, option,
+                    options = elem.options,
+                    index = elem.selectedIndex,
+                    one = elem.type === "select-one" || index < 0,
+                    values = one ? null : [],
+                    max = one ? index + 1 : options.length,
+                    i = index < 0 ?
+                        max :
+                        one ? index : 0;
+
+                // Loop through all the selected options
+                for ( ; i < max; i++ ) {
+                    option = options[ i ];
+
+                    // oldIE doesn't update selected after form reset (#2551)
+                    if ( ( option.selected || i === index ) &&
+                            // Don't return options that are disabled or in a disabled optgroup
+                            ( jQuery.support.optDisabled ? !option.disabled : option.getAttribute("disabled") === null ) &&
+                            ( !option.parentNode.disabled || !jQuery.nodeName( option.parentNode, "optgroup" ) ) ) {
+
+                        // Get the specific value for the option
+                        value = jQuery( option ).val();
+
+                        // We don't need an array for one selects
+                        if ( one ) {
+                            return value;
+                        }
+
+                        // Multi-Selects return an array
+                        values.push( value );
+                    }
+                }
+
+                return values;
+            },
+
+            set: function( elem, value ) {
+                var values = jQuery.makeArray( value );
+
+                jQuery(elem).find("option").each(function() {
+                    this.selected = jQuery.inArray( jQuery(this).val(), values ) >= 0;
+                });
+
+                if ( !values.length ) {
+                    elem.selectedIndex = -1;
+                }
+                return values;
+            }
+        }
+    },
+
+    attr: function( elem, name, value ) {
+        var ret, hooks, notxml,
+            nType = elem.nodeType;
+
+        // don't get/set attributes on text, comment and attribute nodes
+        if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {
+            return;
+        }
+
+        // Fallback to prop when attributes are not supported
+        if ( typeof elem.getAttribute === "undefined" ) {
+            return jQuery.prop( elem, name, value );
+        }
+
+        notxml = nType !== 1 || !jQuery.isXMLDoc( elem );
+
+        // All attributes are lowercase
+        // Grab necessary hook if one is defined
+        if ( notxml ) {
+            name = name.toLowerCase();
+            hooks = jQuery.attrHooks[ name ] || ( rboolean.test( name ) ? boolHook : nodeHook );
+        }
+
+        if ( value !== undefined ) {
+
+            if ( value === null ) {
+                jQuery.removeAttr( elem, name );
+
+            } else if ( hooks && notxml && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ) {
+                return ret;
+
+            } else {
+                elem.setAttribute( name, value + "" );
+                return value;
+            }
+
+        } else if ( hooks && notxml && "get" in hooks && (ret = hooks.get( elem, name )) !== null ) {
+            return ret;
+
+        } else {
+
+            // In IE9+, Flash objects don't have .getAttribute (#12945)
+            // Support: IE9+
+            if ( typeof elem.getAttribute !== "undefined" ) {
+                ret =  elem.getAttribute( name );
+            }
+
+            // Non-existent attributes return null, we normalize to undefined
+            return ret == null ?
+                undefined :
+                ret;
+        }
+    },
+
+    removeAttr: function( elem, value ) {
+        var name, propName,
+            i = 0,
+            attrNames = value && value.match( core_rnotwhite );
+
+        if ( attrNames && elem.nodeType === 1 ) {
+            while ( (name = attrNames[i++]) ) {
+                propName = jQuery.propFix[ name ] || name;
+
+                // Boolean attributes get special treatment (#10870)
+                if ( rboolean.test( name ) ) {
+                    // Set corresponding property to false for boolean attributes
+                    // Also clear defaultChecked/defaultSelected (if appropriate) for IE<8
+                    if ( !getSetAttribute && ruseDefault.test( name ) ) {
+                        elem[ jQuery.camelCase( "default-" + name ) ] =
+                            elem[ propName ] = false;
+                    } else {
+                        elem[ propName ] = false;
+                    }
+
+                // See #9699 for explanation of this approach (setting first, then removal)
+                } else {
+                    jQuery.attr( elem, name, "" );
+                }
+
+                elem.removeAttribute( getSetAttribute ? name : propName );
+            }
+        }
+    },
+
+    attrHooks: {
+        type: {
+            set: function( elem, value ) {
+                if ( !jQuery.support.radioValue && value === "radio" && jQuery.nodeName(elem, "input") ) {
+                    // Setting the type on a radio button after the value resets the value in IE6-9
+                    // Reset value to default in case type is set after value during creation
+                    var val = elem.value;
+                    elem.setAttribute( "type", value );
+                    if ( val ) {
+                        elem.value = val;
+                    }
+                    return value;
+                }
+            }
+        }
+    },
+
+    propFix: {
+        tabindex: "tabIndex",
+        readonly: "readOnly",
+        "for": "htmlFor",
+        "class": "className",
+        maxlength: "maxLength",
+        cellspacing: "cellSpacing",
+        cellpadding: "cellPadding",
+        rowspan: "rowSpan",
+        colspan: "colSpan",
+        usemap: "useMap",
+        frameborder: "frameBorder",
+        contenteditable: "contentEditable"
+    },
+
+    prop: function( elem, name, value ) {
+        var ret, hooks, notxml,
+            nType = elem.nodeType;
+
+        // don't get/set properties on text, comment and attribute nodes
+        if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {
+            return;
+        }
+
+        notxml = nType !== 1 || !jQuery.isXMLDoc( elem );
+
+        if ( notxml ) {
+            // Fix name and attach hooks
+            name = jQuery.propFix[ name ] || name;
+            hooks = jQuery.propHooks[ name ];
+        }
+
+        if ( value !== undefined ) {
+            if ( hooks && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ) {
+                return ret;
+
+            } else {
+                return ( elem[ name ] = value );
+            }
+
+        } else {
+            if ( hooks && "get" in hooks && (ret = hooks.get( elem, name )) !== null ) {
+                return ret;
+
+            } else {
+                return elem[ name ];
+            }
+        }
+    },
+
+    propHooks: {
+        tabIndex: {
+            get: function( elem ) {
+                // elem.tabIndex doesn't always return the correct value when it hasn't been explicitly set
+                // http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
+                var attributeNode = elem.getAttributeNode("tabindex");
+
+                return attributeNode && attributeNode.specified ?
+                    parseInt( attributeNode.value, 10 ) :
+                    rfocusable.test( elem.nodeName ) || rclickable.test( elem.nodeName ) && elem.href ?
+                        0 :
+                        undefined;
+            }
+        }
+    }
+});
+
+// Hook for boolean attributes
+boolHook = {
+    get: function( elem, name ) {
+        var
+            // Use .prop to determine if this attribute is understood as boolean
+            prop = jQuery.prop( elem, name ),
+
+            // Fetch it accordingly
+            attr = typeof prop === "boolean" && elem.getAttribute( name ),
+            detail = typeof prop === "boolean" ?
+
+                getSetInput && getSetAttribute ?
+                    attr != null :
+                    // oldIE fabricates an empty string for missing boolean attributes
+                    // and conflates checked/selected into attroperties
+                    ruseDefault.test( name ) ?
+                        elem[ jQuery.camelCase( "default-" + name ) ] :
+                        !!attr :
+
+                // fetch an attribute node for properties not recognized as boolean
+                elem.getAttributeNode( name );
+
+        return detail && detail.value !== false ?
+            name.toLowerCase() :
+            undefined;
+    },
+    set: function( elem, value, name ) {
+        if ( value === false ) {
+            // Remove boolean attributes when set to false
+            jQuery.removeAttr( elem, name );
+        } else if ( getSetInput && getSetAttribute || !ruseDefault.test( name ) ) {
+            // IE<8 needs the *property* name
+            elem.setAttribute( !getSetAttribute && jQuery.propFix[ name ] || name, name );
+
+        // Use defaultChecked and defaultSelected for oldIE
+        } else {
+            elem[ jQuery.camelCase( "default-" + name ) ] = elem[ name ] = true;
+        }
+
+        return name;
+    }
+};
+
+// fix oldIE value attroperty
+if ( !getSetInput || !getSetAttribute ) {
+    jQuery.attrHooks.value = {
+        get: function( elem, name ) {
+            var ret = elem.getAttributeNode( name );
+            return jQuery.nodeName( elem, "input" ) ?
+
+                // Ignore the value *property* by using defaultValue
+                elem.defaultValue :
+
+                ret && ret.specified ? ret.value : undefined;
+        },
+        set: function( elem, value, name ) {
+            if ( jQuery.nodeName( elem, "input" ) ) {
+                // Does not return so that setAttribute is also used
+                elem.defaultValue = value;
+            } else {
+                // Use nodeHook if defined (#1954); otherwise setAttribute is fine
+                return nodeHook && nodeHook.set( elem, value, name );
+            }
+        }
+    };
+}
+
+// IE6/7 do not support getting/setting some attributes with get/setAttribute
+if ( !getSetAttribute ) {
+
+    // Use this for any attribute in IE6/7
+    // This fixes almost every IE6/7 issue
+    nodeHook = jQuery.valHooks.button = {
+        get: function( elem, name ) {
+            var ret = elem.getAttributeNode( name );
+            return ret && ( name === "id" || name === "name" || name === "coords" ? ret.value !== "" : ret.specified ) ?
+                ret.value :
+                undefined;
+        },
+        set: function( elem, value, name ) {
+            // Set the existing or create a new attribute node
+            var ret = elem.getAttributeNode( name );
+            if ( !ret ) {
+                elem.setAttributeNode(
+                    (ret = elem.ownerDocument.createAttribute( name ))
+                );
+            }
+
+            ret.value = value += "";
+
+            // Break association with cloned elements by also using setAttribute (#9646)
+            return name === "value" || value === elem.getAttribute( name ) ?
+                value :
+                undefined;
+        }
+    };
+
+    // Set contenteditable to false on removals(#10429)
+    // Setting to empty string throws an error as an invalid value
+    jQuery.attrHooks.contenteditable = {
+        get: nodeHook.get,
+        set: function( elem, value, name ) {
+            nodeHook.set( elem, value === "" ? false : value, name );
+        }
+    };
+
+    // Set width and height to auto instead of 0 on empty string( Bug #8150 )
+    // This is for removals
+    jQuery.each([ "width", "height" ], function( i, name ) {
+        jQuery.attrHooks[ name ] = jQuery.extend( jQuery.attrHooks[ name ], {
+            set: function( elem, value ) {
+                if ( value === "" ) {
+                    elem.setAttribute( name, "auto" );
+                    return value;
+                }
+            }
+        });
+    });
+}
+
+
+// Some attributes require a special call on IE
+// http://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
+if ( !jQuery.support.hrefNormalized ) {
+    jQuery.each([ "href", "src", "width", "height" ], function( i, name ) {
+        jQuery.attrHooks[ name ] = jQuery.extend( jQuery.attrHooks[ name ], {
+            get: function( elem ) {
+                var ret = elem.getAttribute( name, 2 );
+                return ret == null ? undefined : ret;
+            }
+        });
+    });
+
+    // href/src property should get the full normalized URL (#10299/#12915)
+    jQuery.each([ "href", "src" ], function( i, name ) {
+        jQuery.propHooks[ name ] = {
+            get: function( elem ) {
+                return elem.getAttribute( name, 4 );
+            }
+        };
+    });
+}
+
+if ( !jQuery.support.style ) {
+    jQuery.attrHooks.style = {
+        get: function( elem ) {
+            // Return undefined in the case of empty string
+            // Note: IE uppercases css property names, but if we were to .toLowerCase()
+            // .cssText, that would destroy case senstitivity in URL's, like in "background"
+            return elem.style.cssText || undefined;
+        },
+        set: function( elem, value ) {
+            return ( elem.style.cssText = value + "" );
+        }
+    };
+}
+
+// Safari mis-reports the default selected property of an option
+// Accessing the parent's selectedIndex property fixes it
+if ( !jQuery.support.optSelected ) {
+    jQuery.propHooks.selected = jQuery.extend( jQuery.propHooks.selected, {
+        get: function( elem ) {
+            var parent = elem.parentNode;
+
+            if ( parent ) {
+                parent.selectedIndex;
+
+                // Make sure that it also works with optgroups, see #5701
+                if ( parent.parentNode ) {
+                    parent.parentNode.selectedIndex;
+                }
+            }
+            return null;
+        }
+    });
+}
+
+// IE6/7 call enctype encoding
+if ( !jQuery.support.enctype ) {
+    jQuery.propFix.enctype = "encoding";
+}
+
+// Radios and checkboxes getter/setter
+if ( !jQuery.support.checkOn ) {
+    jQuery.each([ "radio", "checkbox" ], function() {
+        jQuery.valHooks[ this ] = {
+            get: function( elem ) {
+                // Handle the case where in Webkit "" is returned instead of "on" if a value isn't specified
+                return elem.getAttribute("value") === null ? "on" : elem.value;
+            }
+        };
+    });
+}
+jQuery.each([ "radio", "checkbox" ], function() {
+    jQuery.valHooks[ this ] = jQuery.extend( jQuery.valHooks[ this ], {
+        set: function( elem, value ) {
+            if ( jQuery.isArray( value ) ) {
+                return ( elem.checked = jQuery.inArray( jQuery(elem).val(), value ) >= 0 );
+            }
+        }
+    });
+});
+var rformElems = /^(?:input|select|textarea)$/i,
+    rkeyEvent = /^key/,
+    rmouseEvent = /^(?:mouse|contextmenu)|click/,
+    rfocusMorph = /^(?:focusinfocus|focusoutblur)$/,
+    rtypenamespace = /^([^.]*)(?:\.(.+)|)$/;
+
+function returnTrue() {
+    return true;
+}
+
+function returnFalse() {
+    return false;
+}
+
+/*
+ * Helper functions for managing events -- not part of the public interface.
+ * Props to Dean Edwards' addEvent library for many of the ideas.
+ */
+jQuery.event = {
+
+    global: {},
+
+    add: function( elem, types, handler, data, selector ) {
+
+        var handleObjIn, eventHandle, tmp,
+            events, t, handleObj,
+            special, handlers, type, namespaces, origType,
+            // Don't attach events to noData or text/comment nodes (but allow plain objects)
+            elemData = elem.nodeType !== 3 && elem.nodeType !== 8 && jQuery._data( elem );
+
+        if ( !elemData ) {
+            return;
+        }
+
+        // Caller can pass in an object of custom data in lieu of the handler
+        if ( handler.handler ) {
+            handleObjIn = handler;
+            handler = handleObjIn.handler;
+            selector = handleObjIn.selector;
+        }
+
+        // Make sure that the handler has a unique ID, used to find/remove it later
+        if ( !handler.guid ) {
+            handler.guid = jQuery.guid++;
+        }
+
+        // Init the element's event structure and main handler, if this is the first
+        if ( !(events = elemData.events) ) {
+            events = elemData.events = {};
+        }
+        if ( !(eventHandle = elemData.handle) ) {
+            eventHandle = elemData.handle = function( e ) {
+                // Discard the second event of a jQuery.event.trigger() and
+                // when an event is called after a page has unloaded
+                return typeof jQuery !== "undefined" && (!e || jQuery.event.triggered !== e.type) ?
+                    jQuery.event.dispatch.apply( eventHandle.elem, arguments ) :
+                    undefined;
+            };
+            // Add elem as a property of the handle fn to prevent a memory leak with IE non-native events
+            eventHandle.elem = elem;
+        }
+
+        // Handle multiple events separated by a space
+        // jQuery(...).bind("mouseover mouseout", fn);
+        types = ( types || "" ).match( core_rnotwhite ) || [""];
+        t = types.length;
+        while ( t-- ) {
+            tmp = rtypenamespace.exec( types[t] ) || [];
+            type = origType = tmp[1];
+            namespaces = ( tmp[2] || "" ).split( "." ).sort();
+
+            // If event changes its type, use the special event handlers for the changed type
+            special = jQuery.event.special[ type ] || {};
+
+            // If selector defined, determine special event api type, otherwise given type
+            type = ( selector ? special.delegateType : special.bindType ) || type;
+
+            // Update special based on newly reset type
+            special = jQuery.event.special[ type ] || {};
+
+            // handleObj is passed to all event handlers
+            handleObj = jQuery.extend({
+                type: type,
+                origType: origType,
+                data: data,
+                handler: handler,
+                guid: handler.guid,
+                selector: selector,
+                needsContext: selector && jQuery.expr.match.needsContext.test( selector ),
+                namespace: namespaces.join(".")
+            }, handleObjIn );
+
+            // Init the event handler queue if we're the first
+            if ( !(handlers = events[ type ]) ) {
+                handlers = events[ type ] = [];
+                handlers.delegateCount = 0;
+
+                // Only use addEventListener/attachEvent if the special events handler returns false
+                if ( !special.setup || special.setup.call( elem, data, namespaces, eventHandle ) === false ) {
+                    // Bind the global event handler to the element
+                    if ( elem.addEventListener ) {
+                        elem.addEventListener( type, eventHandle, false );
+
+                    } else if ( elem.attachEvent ) {
+                        elem.attachEvent( "on" + type, eventHandle );
+                    }
+                }
+            }
+
+            if ( special.add ) {
+                special.add.call( elem, handleObj );
+
+                if ( !handleObj.handler.guid ) {
+                    handleObj.handler.guid = handler.guid;
+                }
+            }
+
+            // Add to the element's handler list, delegates in front
+            if ( selector ) {
+                handlers.splice( handlers.delegateCount++, 0, handleObj );
+            } else {
+                handlers.push( handleObj );
+            }
+
+            // Keep track of which events have ever been used, for event optimization
+            jQuery.event.global[ type ] = true;
+        }
+
+        // Nullify elem to prevent memory leaks in IE
+        elem = null;
+    },
+
+    // Detach an event or set of events from an element
+    remove: function( elem, types, handler, selector, mappedTypes ) {
+
+        var j, origCount, tmp,
+            events, t, handleObj,
+            special, handlers, type, namespaces, origType,
+            elemData = jQuery.hasData( elem ) && jQuery._data( elem );
+
+        if ( !elemData || !(events = elemData.events) ) {
+            return;
+        }
+
+        // Once for each type.namespace in types; type may be omitted
+        types = ( types || "" ).match( core_rnotwhite ) || [""];
+        t = types.length;
+        while ( t-- ) {
+            tmp = rtypenamespace.exec( types[t] ) || [];
+            type = origType = tmp[1];
+            namespaces = ( tmp[2] || "" ).split( "." ).sort();
+
+            // Unbind all events (on this namespace, if provided) for the element
+            if ( !type ) {
+                for ( type in events ) {
+                    jQuery.event.remove( elem, type + types[ t ], handler, selector, true );
+                }
+                continue;
+            }
+
+            special = jQuery.event.special[ type ] || {};
+            type = ( selector ? special.delegateType : special.bindType ) || type;
+            handlers = events[ type ] || [];
+            tmp = tmp[2] && new RegExp( "(^|\\.)" + namespaces.join("\\.(?:.*\\.|)") + "(\\.|$)" );
+
+            // Remove matching events
+            origCount = j = handlers.length;
+            while ( j-- ) {
+                handleObj = handlers[ j ];
+
+                if ( ( mappedTypes || origType === handleObj.origType ) &&
+                    ( !handler || handler.guid === handleObj.guid ) &&
+                    ( !tmp || tmp.test( handleObj.namespace ) ) &&
+                    ( !selector || selector === handleObj.selector || selector === "**" && handleObj.selector ) ) {
+                    handlers.splice( j, 1 );
+
+                    if ( handleObj.selector ) {
+                        handlers.delegateCount--;
+                    }
+                    if ( special.remove ) {
+                        special.remove.call( elem, handleObj );
+                    }
+                }
+            }
+
+            // Remove generic event handler if we removed something and no more handlers exist
+            // (avoids potential for endless recursion during removal of special event handlers)
+            if ( origCount && !handlers.length ) {
+                if ( !special.teardown || special.teardown.call( elem, namespaces, elemData.handle ) === false ) {
+                    jQuery.removeEvent( elem, type, elemData.handle );
+                }
+
+                delete events[ type ];
+            }
+        }
+
+        // Remove the expando if it's no longer used
+        if ( jQuery.isEmptyObject( events ) ) {
+            delete elemData.handle;
+
+            // removeData also checks for emptiness and clears the expando if empty
+            // so use it instead of delete
+            jQuery._removeData( elem, "events" );
+        }
+    },
+
+    trigger: function( event, data, elem, onlyHandlers ) {
+
+        var i, cur, tmp, bubbleType, ontype, handle, special,
+            eventPath = [ elem || document ],
+            type = event.type || event,
+            namespaces = event.namespace ? event.namespace.split(".") : [];
+
+        cur = tmp = elem = elem || document;
+
+        // Don't do events on text and comment nodes
+        if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
+            return;
+        }
+
+        // focus/blur morphs to focusin/out; ensure we're not firing them right now
+        if ( rfocusMorph.test( type + jQuery.event.triggered ) ) {
+            return;
+        }
+
+        if ( type.indexOf(".") >= 0 ) {
+            // Namespaced trigger; create a regexp to match event type in handle()
+            namespaces = type.split(".");
+            type = namespaces.shift();
+            namespaces.sort();
+        }
+        ontype = type.indexOf(":") < 0 && "on" + type;
+
+        // Caller can pass in a jQuery.Event object, Object, or just an event type string
+        event = event[ jQuery.expando ] ?
+            event :
+            new jQuery.Event( type, typeof event === "object" && event );
+
+        event.isTrigger = true;
+        event.namespace = namespaces.join(".");
+        event.namespace_re = event.namespace ?
+            new RegExp( "(^|\\.)" + namespaces.join("\\.(?:.*\\.|)") + "(\\.|$)" ) :
+            null;
+
+        // Clean up the event in case it is being reused
+        event.result = undefined;
+        if ( !event.target ) {
+            event.target = elem;
+        }
+
+        // Clone any incoming data and prepend the event, creating the handler arg list
+        data = data == null ?
+            [ event ] :
+            jQuery.makeArray( data, [ event ] );
+
+        // Allow special events to draw outside the lines
+        special = jQuery.event.special[ type ] || {};
+        if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {
+            return;
+        }
+
+        // Determine event propagation path in advance, per W3C events spec (#9951)
+        // Bubble up to document, then to window; watch for a global ownerDocument var (#9724)
+        if ( !onlyHandlers && !special.noBubble && !jQuery.isWindow( elem ) ) {
+
+            bubbleType = special.delegateType || type;
+            if ( !rfocusMorph.test( bubbleType + type ) ) {
+                cur = cur.parentNode;
+            }
+            for ( ; cur; cur = cur.parentNode ) {
+                eventPath.push( cur );
+                tmp = cur;
+            }
+
+            // Only add window if we got to document (e.g., not plain obj or detached DOM)
+            if ( tmp === (elem.ownerDocument || document) ) {
+                eventPath.push( tmp.defaultView || tmp.parentWindow || window );
+            }
+        }
+
+        // Fire handlers on the event path
+        i = 0;
+        while ( (cur = eventPath[i++]) && !event.isPropagationStopped() ) {
+
+            event.type = i > 1 ?
+                bubbleType :
+                special.bindType || type;
+
+            // jQuery handler
+            handle = ( jQuery._data( cur, "events" ) || {} )[ event.type ] && jQuery._data( cur, "handle" );
+            if ( handle ) {
+                handle.apply( cur, data );
+            }
+
+            // Native handler
+            handle = ontype && cur[ ontype ];
+            if ( handle && jQuery.acceptData( cur ) && handle.apply && handle.apply( cur, data ) === false ) {
+                event.preventDefault();
+            }
+        }
+        event.type = type;
+
+        // If nobody prevented the default action, do it now
+        if ( !onlyHandlers && !event.isDefaultPrevented() ) {
+
+            if ( (!special._default || special._default.apply( elem.ownerDocument, data ) === false) &&
+                !(type === "click" && jQuery.nodeName( elem, "a" )) && jQuery.acceptData( elem ) ) {
+
+                // Call a native DOM method on the target with the same name name as the event.
+                // Can't use an .isFunction() check here because IE6/7 fails that test.
+                // Don't do default actions on window, that's where global variables be (#6170)
+                if ( ontype && elem[ type ] && !jQuery.isWindow( elem ) ) {
+
+                    // Don't re-trigger an onFOO event when we call its FOO() method
+                    tmp = elem[ ontype ];
+
+                    if ( tmp ) {
+                        elem[ ontype ] = null;
+                    }
+
+                    // Prevent re-triggering of the same event, since we already bubbled it above
+                    jQuery.event.triggered = type;
+                    try {
+                        elem[ type ]();
+                    } catch ( e ) {
+                        // IE<9 dies on focus/blur to hidden element (#1486,#12518)
+                        // only reproducible on winXP IE8 native, not IE9 in IE8 mode
+                    }
+                    jQuery.event.triggered = undefined;
+
+                    if ( tmp ) {
+                        elem[ ontype ] = tmp;
+                    }
+                }
+            }
+        }
+
+        return event.result;
+    },
+
+    dispatch: function( event ) {
+
+        // Make a writable jQuery.Event from the native event object
+        event = jQuery.event.fix( event );
+
+        var i, j, ret, matched, handleObj,
+            handlerQueue = [],
+            args = core_slice.call( arguments ),
+            handlers = ( jQuery._data( this, "events" ) || {} )[ event.type ] || [],
+            special = jQuery.event.special[ event.type ] || {};
+
+        // Use the fix-ed jQuery.Event rather than the (read-only) native event
+        args[0] = event;
+        event.delegateTarget = this;
+
+        // Call the preDispatch hook for the mapped type, and let it bail if desired
+        if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {
+            return;
+        }
+
+        // Determine handlers
+        handlerQueue = jQuery.event.handlers.call( this, event, handlers );
+
+        // Run delegates first; they may want to stop propagation beneath us
+        i = 0;
+        while ( (matched = handlerQueue[ i++ ]) && !event.isPropagationStopped() ) {
+            event.currentTarget = matched.elem;
+
+            j = 0;
+            while ( (handleObj = matched.handlers[ j++ ]) && !event.isImmediatePropagationStopped() ) {
+
+                // Triggered event must either 1) have no namespace, or
+                // 2) have namespace(s) a subset or equal to those in the bound event (both can have no namespace).
+                if ( !event.namespace_re || event.namespace_re.test( handleObj.namespace ) ) {
+
+                    event.handleObj = handleObj;
+                    event.data = handleObj.data;
+
+                    ret = ( (jQuery.event.special[ handleObj.origType ] || {}).handle || handleObj.handler )
+                            .apply( matched.elem, args );
+
+                    if ( ret !== undefined ) {
+                        if ( (event.result = ret) === false ) {
+                            event.preventDefault();
+                            event.stopPropagation();
+                        }
+                    }
+                }
+            }
+        }
+
+        // Call the postDispatch hook for the mapped type
+        if ( special.postDispatch ) {
+            special.postDispatch.call( this, event );
+        }
+
+        return event.result;
+    },
+
+    handlers: function( event, handlers ) {
+        var i, matches, sel, handleObj,
+            handlerQueue = [],
+            delegateCount = handlers.delegateCount,
+            cur = event.target;
+
+        // Find delegate handlers
+        // Black-hole SVG <use> instance trees (#13180)
+        // Avoid non-left-click bubbling in Firefox (#3861)
+        if ( delegateCount && cur.nodeType && (!event.button || event.type !== "click") ) {
+
+            for ( ; cur != this; cur = cur.parentNode || this ) {
+
+                // Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
+                if ( cur.disabled !== true || event.type !== "click" ) {
+                    matches = [];
+                    for ( i = 0; i < delegateCount; i++ ) {
+                        handleObj = handlers[ i ];
+
+                        // Don't conflict with Object.prototype properties (#13203)
+                        sel = handleObj.selector + " ";
+
+                        if ( matches[ sel ] === undefined ) {
+                            matches[ sel ] = handleObj.needsContext ?
+                                jQuery( sel, this ).index( cur ) >= 0 :
+                                jQuery.find( sel, this, null, [ cur ] ).length;
+                        }
+                        if ( matches[ sel ] ) {
+                            matches.push( handleObj );
+                        }
+                    }
+                    if ( matches.length ) {
+                        handlerQueue.push({ elem: cur, handlers: matches });
+                    }
+                }
+            }
+        }
+
+        // Add the remaining (directly-bound) handlers
+        if ( delegateCount < handlers.length ) {
+            handlerQueue.push({ elem: this, handlers: handlers.slice( delegateCount ) });
+        }
+
+        return handlerQueue;
+    },
+
+    fix: function( event ) {
+        if ( event[ jQuery.expando ] ) {
+            return event;
+        }
+
+        // Create a writable copy of the event object and normalize some properties
+        var i, prop,
+            originalEvent = event,
+            fixHook = jQuery.event.fixHooks[ event.type ] || {},
+            copy = fixHook.props ? this.props.concat( fixHook.props ) : this.props;
+
+        event = new jQuery.Event( originalEvent );
+
+        i = copy.length;
+        while ( i-- ) {
+            prop = copy[ i ];
+            event[ prop ] = originalEvent[ prop ];
+        }
+
+        // Support: IE<9
+        // Fix target property (#1925)
+        if ( !event.target ) {
+            event.target = originalEvent.srcElement || document;
+        }
+
+        // Support: Chrome 23+, Safari?
+        // Target should not be a text node (#504, #13143)
+        if ( event.target.nodeType === 3 ) {
+            event.target = event.target.parentNode;
+        }
+
+        // Support: IE<9
+        // For mouse/key events, metaKey==false if it's undefined (#3368, #11328)
+        event.metaKey = !!event.metaKey;
+
+        return fixHook.filter ? fixHook.filter( event, originalEvent ) : event;
+    },
+
+    // Includes some event props shared by KeyEvent and MouseEvent
+    props: "altKey bubbles cancelable ctrlKey currentTarget eventPhase metaKey relatedTarget shiftKey target timeStamp view which".split(" "),
+
+    fixHooks: {},
+
+    keyHooks: {
+        props: "char charCode key keyCode".split(" "),
+        filter: function( event, original ) {
+
+            // Add which for key events
+            if ( event.which == null ) {
+                event.which = original.charCode != null ? original.charCode : original.keyCode;
+            }
+
+            return event;
+        }
+    },
+
+    mouseHooks: {
+        props: "button buttons clientX clientY fromElement offsetX offsetY pageX pageY screenX screenY toElement".split(" "),
+        filter: function( event, original ) {
+            var eventDoc, doc, body,
+                button = original.button,
+                fromElement = original.fromElement;
+
+            // Calculate pageX/Y if missing and clientX/Y available
+            if ( event.pageX == null && original.clientX != null ) {
+                eventDoc = event.target.ownerDocument || document;
+                doc = eventDoc.documentElement;
+                body = eventDoc.body;
+
+                event.pageX = original.clientX + ( doc && doc.scrollLeft || body && body.scrollLeft || 0 ) - ( doc && doc.clientLeft || body && body.clientLeft || 0 );
+                event.pageY = original.clientY + ( doc && doc.scrollTop  || body && body.scrollTop  || 0 ) - ( doc && doc.clientTop  || body && body.clientTop  || 0 );
+            }
+
+            // Add relatedTarget, if necessary
+            if ( !event.relatedTarget && fromElement ) {
+                event.relatedTarget = fromElement === event.target ? original.toElement : fromElement;
+            }
+
+            // Add which for click: 1 === left; 2 === middle; 3 === right
+            // Note: button is not normalized, so don't use it
+            if ( !event.which && button !== undefined ) {
+                event.which = ( button & 1 ? 1 : ( button & 2 ? 3 : ( button & 4 ? 2 : 0 ) ) );
+            }
+
+            return event;
+        }
+    },
+
+    special: {
+        load: {
+            // Prevent triggered image.load events from bubbling to window.load
+            noBubble: true
+        },
+        click: {
+            // For checkbox, fire native event so checked state will be right
+            trigger: function() {
+                if ( jQuery.nodeName( this, "input" ) && this.type === "checkbox" && this.click ) {
+                    this.click();
+                    return false;
+                }
+            }
+        },
+        focus: {
+            // Fire native event if possible so blur/focus sequence is correct
+            trigger: function() {
+                if ( this !== document.activeElement && this.focus ) {
+                    try {
+                        this.focus();
+                        return false;
+                    } catch ( e ) {
+                        // Support: IE<9
+                        // If we error on focus to hidden element (#1486, #12518),
+                        // let .trigger() run the handlers
+                    }
+                }
+            },
+            delegateType: "focusin"
+        },
+        blur: {
+            trigger: function() {
+                if ( this === document.activeElement && this.blur ) {
+                    this.blur();
+                    return false;
+                }
+            },
+            delegateType: "focusout"
+        },
+
+        beforeunload: {
+            postDispatch: function( event ) {
+
+                // Even when returnValue equals to undefined Firefox will still show alert
+                if ( event.result !== undefined ) {
+                    event.originalEvent.returnValue = event.result;
+                }
+            }
+        }
+    },
+
+    simulate: function( type, elem, event, bubble ) {
+        // Piggyback on a donor event to simulate a different one.
+        // Fake originalEvent to avoid donor's stopPropagation, but if the
+        // simulated event prevents default then we do the same on the donor.
+        var e = jQuery.extend(
+            new jQuery.Event(),
+            event,
+            { type: type,
+                isSimulated: true,
+                originalEvent: {}
+            }
+        );
+        if ( bubble ) {
+            jQuery.event.trigger( e, null, elem );
+        } else {
+            jQuery.event.dispatch.call( elem, e );
+        }
+        if ( e.isDefaultPrevented() ) {
+            event.preventDefault();
+        }
+    }
+};
+
+jQuery.removeEvent = document.removeEventListener ?
+    function( elem, type, handle ) {
+        if ( elem.removeEventListener ) {
+            elem.removeEventListener( type, handle, false );
+        }
+    } :
+    function( elem, type, handle ) {
+        var name = "on" + type;
+
+        if ( elem.detachEvent ) {
+
+            // #8545, #7054, preventing memory leaks for custom events in IE6-8
+            // detachEvent needed property on element, by name of that event, to properly expose it to GC
+            if ( typeof elem[ name ] === "undefined" ) {
+                elem[ name ] = null;
+            }
+
+            elem.detachEvent( name, handle );
+        }
+    };
+
+jQuery.Event = function( src, props ) {
+    // Allow instantiation without the 'new' keyword
+    if ( !(this instanceof jQuery.Event) ) {
+        return new jQuery.Event( src, props );
+    }
+
+    // Event object
+    if ( src && src.type ) {
+        this.originalEvent = src;
+        this.type = src.type;
+
+        // Events bubbling up the document may have been marked as prevented
+        // by a handler lower down the tree; reflect the correct value.
+        this.isDefaultPrevented = ( src.defaultPrevented || src.returnValue === false ||
+            src.getPreventDefault && src.getPreventDefault() ) ? returnTrue : returnFalse;
+
+    // Event type
+    } else {
+        this.type = src;
+    }
+
+    // Put explicitly provided properties onto the event object
+    if ( props ) {
+        jQuery.extend( this, props );
+    }
+
+    // Create a timestamp if incoming event doesn't have one
+    this.timeStamp = src && src.timeStamp || jQuery.now();
+
+    // Mark it as fixed
+    this[ jQuery.expando ] = true;
+};
+
+// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
+// http://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
+jQuery.Event.prototype = {
+    isDefaultPrevented: returnFalse,
+    isPropagationStopped: returnFalse,
+    isImmediatePropagationStopped: returnFalse,
+
+    preventDefault: function() {
+        var e = this.originalEvent;
+
+        this.isDefaultPrevented = returnTrue;
+        if ( !e ) {
+            return;
+        }
+
+        // If preventDefault exists, run it on the original event
+        if ( e.preventDefault ) {
+            e.preventDefault();
+
+        // Support: IE
+        // Otherwise set the returnValue property of the original event to false
+        } else {
+            e.returnValue = false;
+        }
+    },
+    stopPropagation: function() {
+        var e = this.originalEvent;
+
+        this.isPropagationStopped = returnTrue;
+        if ( !e ) {
+            return;
+        }
+        // If stopPropagation exists, run it on the original event
+        if ( e.stopPropagation ) {
+            e.stopPropagation();
+        }
+
+        // Support: IE
+        // Set the cancelBubble property of the original event to true
+        e.cancelBubble = true;
+    },
+    stopImmediatePropagation: function() {
+        this.isImmediatePropagationStopped = returnTrue;
+        this.stopPropagation();
+    }
+};
+
+// Create mouseenter/leave events using mouseover/out and event-time checks
+jQuery.each({
+    mouseenter: "mouseover",
+    mouseleave: "mouseout"
+}, function( orig, fix ) {
+    jQuery.event.special[ orig ] = {
+        delegateType: fix,
+        bindType: fix,
+
+        handle: function( event ) {
+            var ret,
+                target = this,
+                related = event.relatedTarget,
+                handleObj = event.handleObj;
+
+            // For mousenter/leave call the handler if related is outside the target.
+            // NB: No relatedTarget if the mouse left/entered the browser window
+            if ( !related || (related !== target && !jQuery.contains( target, related )) ) {
+                event.type = handleObj.origType;
+                ret = handleObj.handler.apply( this, arguments );
+                event.type = fix;
+            }
+            return ret;
+        }
+    };
+});
+
+// IE submit delegation
+if ( !jQuery.support.submitBubbles ) {
+
+    jQuery.event.special.submit = {
+        setup: function() {
+            // Only need this for delegated form submit events
+            if ( jQuery.nodeName( this, "form" ) ) {
+                return false;
+            }
+
+            // Lazy-add a submit handler when a descendant form may potentially be submitted
+            jQuery.event.add( this, "click._submit keypress._submit", function( e ) {
+                // Node name check avoids a VML-related crash in IE (#9807)
+                var elem = e.target,
+                    form = jQuery.nodeName( elem, "input" ) || jQuery.nodeName( elem, "button" ) ? elem.form : undefined;
+                if ( form && !jQuery._data( form, "submitBubbles" ) ) {
+                    jQuery.event.add( form, "submit._submit", function( event ) {
+                        event._submit_bubble = true;
+                    });
+                    jQuery._data( form, "submitBubbles", true );
+                }
+            });
+            // return undefined since we don't need an event listener
+        },
+
+        postDispatch: function( event ) {
+            // If form was submitted by the user, bubble the event up the tree
+            if ( event._submit_bubble ) {
+                delete event._submit_bubble;
+                if ( this.parentNode && !event.isTrigger ) {
+                    jQuery.event.simulate( "submit", this.parentNode, event, true );
+                }
+            }
+        },
+
+        teardown: function() {
+            // Only need this for delegated form submit events
+            if ( jQuery.nodeName( this, "form" ) ) {
+                return false;
+            }
+
+            // Remove delegated handlers; cleanData eventually reaps submit handlers attached above
+            jQuery.event.remove( this, "._submit" );
+        }
+    };
+}
+
+// IE change delegation and checkbox/radio fix
+if ( !jQuery.support.changeBubbles ) {
+
+    jQuery.event.special.change = {
+
+        setup: function() {
+
+            if ( rformElems.test( this.nodeName ) ) {
+                // IE doesn't fire change on a check/radio until blur; trigger it on click
+                // after a propertychange. Eat the blur-change in special.change.handle.
+                // This still fires onchange a second time for check/radio after blur.
+                if ( this.type === "checkbox" || this.type === "radio" ) {
+                    jQuery.event.add( this, "propertychange._change", function( event ) {
+                        if ( event.originalEvent.propertyName === "checked" ) {
+                            this._just_changed = true;
+                        }
+                    });
+                    jQuery.event.add( this, "click._change", function( event ) {
+                        if ( this._just_changed && !event.isTrigger ) {
+                            this._just_changed = false;
+                        }
+                        // Allow triggered, simulated change events (#11500)
+                        jQuery.event.simulate( "change", this, event, true );
+                    });
+                }
+                return false;
+            }
+            // Delegated event; lazy-add a change handler on descendant inputs
+            jQuery.event.add( this, "beforeactivate._change", function( e ) {
+                var elem = e.target;
+
+                if ( rformElems.test( elem.nodeName ) && !jQuery._data( elem, "changeBubbles" ) ) {
+                    jQuery.event.add( elem, "change._change", function( event ) {
+                        if ( this.parentNode && !event.isSimulated && !event.isTrigger ) {
+                            jQuery.event.simulate( "change", this.parentNode, event, true );
+                        }
+                    });
+                    jQuery._data( elem, "changeBubbles", true );
+                }
+            });
+        },
+
+        handle: function( event ) {
+            var elem = event.target;
+
+            // Swallow native change events from checkbox/radio, we already triggered them above
+            if ( this !== elem || event.isSimulated || event.isTrigger || (elem.type !== "radio" && elem.type !== "checkbox") ) {
+                return event.handleObj.handler.apply( this, arguments );
+            }
+        },
+
+        teardown: function() {
+            jQuery.event.remove( this, "._change" );
+
+            return !rformElems.test( this.nodeName );
+        }
+    };
+}
+
+// Create "bubbling" focus and blur events
+if ( !jQuery.support.focusinBubbles ) {
+    jQuery.each({ focus: "focusin", blur: "focusout" }, function( orig, fix ) {
+
+        // Attach a single capturing handler while someone wants focusin/focusout
+        var attaches = 0,
+            handler = function( event ) {
+                jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ), true );
+            };
+
+        jQuery.event.special[ fix ] = {
+            setup: function() {
+                if ( attaches++ === 0 ) {
+                    document.addEventListener( orig, handler, true );
+                }
+            },
+            teardown: function() {
+                if ( --attaches === 0 ) {
+                    document.removeEventListener( orig, handler, true );
+                }
+            }
+        };
+    });
+}
+
+jQuery.fn.extend({
+
+    on: function( types, selector, data, fn, /*INTERNAL*/ one ) {
+        var origFn, type;
+
+        // Types can be a map of types/handlers
+        if ( typeof types === "object" ) {
+            // ( types-Object, selector, data )
+            if ( typeof selector !== "string" ) {
+                // ( types-Object, data )
+                data = data || selector;
+                selector = undefined;
+            }
+            for ( type in types ) {
+                this.on( type, selector, data, types[ type ], one );
+            }
+            return this;
+        }
+
+        if ( data == null && fn == null ) {
+            // ( types, fn )
+            fn = selector;
+            data = selector = undefined;
+        } else if ( fn == null ) {
+            if ( typeof selector === "string" ) {
+                // ( types, selector, fn )
+                fn = data;
+                data = undefined;
+            } else {
+                // ( types, data, fn )
+                fn = data;
+                data = selector;
+                selector = undefined;
+            }
+        }
+        if ( fn === false ) {
+            fn = returnFalse;
+        } else if ( !fn ) {
+            return this;
+        }
+
+        if ( one === 1 ) {
+            origFn = fn;
+            fn = function( event ) {
+                // Can use an empty set, since event contains the info
+                jQuery().off( event );
+                return origFn.apply( this, arguments );
+            };
+            // Use same guid so caller can remove using origFn
+            fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );
+        }
+        return this.each( function() {
+            jQuery.event.add( this, types, fn, data, selector );
+        });
+    },
+    one: function( types, selector, data, fn ) {
+        return this.on( types, selector, data, fn, 1 );
+    },
+    off: function( types, selector, fn ) {
+        var handleObj, type;
+        if ( types && types.preventDefault && types.handleObj ) {
+            // ( event )  dispatched jQuery.Event
+            handleObj = types.handleObj;
+            jQuery( types.delegateTarget ).off(
+                handleObj.namespace ? handleObj.origType + "." + handleObj.namespace : handleObj.origType,
+                handleObj.selector,
+                handleObj.handler
+            );
+            return this;
+        }
+        if ( typeof types === "object" ) {
+            // ( types-object [, selector] )
+            for ( type in types ) {
+                this.off( type, selector, types[ type ] );
+            }
+            return this;
+        }
+        if ( selector === false || typeof selector === "function" ) {
+            // ( types [, fn] )
+            fn = selector;
+            selector = undefined;
+        }
+        if ( fn === false ) {
+            fn = returnFalse;
+        }
+        return this.each(function() {
+            jQuery.event.remove( this, types, fn, selector );
+        });
+    },
+
+    bind: function( types, data, fn ) {
+        return this.on( types, null, data, fn );
+    },
+    unbind: function( types, fn ) {
+        return this.off( types, null, fn );
+    },
+
+    delegate: function( selector, types, data, fn ) {
+        return this.on( types, selector, data, fn );
+    },
+    undelegate: function( selector, types, fn ) {
+        // ( namespace ) or ( selector, types [, fn] )
+        return arguments.length === 1 ? this.off( selector, "**" ) : this.off( types, selector || "**", fn );
+    },
+
+    trigger: function( type, data ) {
+        return this.each(function() {
+            jQuery.event.trigger( type, data, this );
+        });
+    },
+    triggerHandler: function( type, data ) {
+        var elem = this[0];
+        if ( elem ) {
+            return jQuery.event.trigger( type, data, elem, true );
+        }
+    },
+
+    hover: function( fnOver, fnOut ) {
+        return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
+    }
+});
+
+jQuery.each( ("blur focus focusin focusout load resize scroll unload click dblclick " +
+    "mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
+    "change select submit keydown keypress keyup error contextmenu").split(" "), function( i, name ) {
+
+    // Handle event binding
+    jQuery.fn[ name ] = function( data, fn ) {
+        return arguments.length > 0 ?
+            this.on( name, null, data, fn ) :
+            this.trigger( name );
+    };
+
+    if ( rkeyEvent.test( name ) ) {
+        jQuery.event.fixHooks[ name ] = jQuery.event.keyHooks;
+    }
+
+    if ( rmouseEvent.test( name ) ) {
+        jQuery.event.fixHooks[ name ] = jQuery.event.mouseHooks;
+    }
+});
+/*!
+ * Sizzle CSS Selector Engine
+ * Copyright 2012 jQuery Foundation and other contributors
+ * Released under the MIT license
+ * http://sizzlejs.com/
+ */
+(function( window, undefined ) {
+
+var i,
+    cachedruns,
+    Expr,
+    getText,
+    isXML,
+    compile,
+    hasDuplicate,
+    outermostContext,
+
+    // Local document vars
+    setDocument,
+    document,
+    docElem,
+    documentIsXML,
+    rbuggyQSA,
+    rbuggyMatches,
+    matches,
+    contains,
+    sortOrder,
+
+    // Instance-specific data
+    expando = "sizzle" + -(new Date()),
+    preferredDoc = window.document,
+    support = {},
+    dirruns = 0,
+    done = 0,
+    classCache = createCache(),
+    tokenCache = createCache(),
+    compilerCache = createCache(),
+
+    // General-purpose constants
+    strundefined = typeof undefined,
+    MAX_NEGATIVE = 1 << 31,
+
+    // Array methods
+    arr = [],
+    pop = arr.pop,
+    push = arr.push,
+    slice = arr.slice,
+    // Use a stripped-down indexOf if we can't use a native one
+    indexOf = arr.indexOf || function( elem ) {
+        var i = 0,
+            len = this.length;
+        for ( ; i < len; i++ ) {
+            if ( this[i] === elem ) {
+                return i;
+            }
+        }
+        return -1;
+    },
+
+
+    // Regular expressions
+
+    // Whitespace characters http://www.w3.org/TR/css3-selectors/#whitespace
+    whitespace = "[\\x20\\t\\r\\n\\f]",
+    // http://www.w3.org/TR/css3-syntax/#characters
+    characterEncoding = "(?:\\\\.|[\\w-]|[^\\x00-\\xa0])+",
+
+    // Loosely modeled on CSS identifier characters
+    // An unquoted value should be a CSS identifier http://www.w3.org/TR/css3-selectors/#attribute-selectors
+    // Proper syntax: http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
+    identifier = characterEncoding.replace( "w", "w#" ),
+
+    // Acceptable operators http://www.w3.org/TR/selectors/#attribute-selectors
+    operators = "([*^$|!~]?=)",
+    attributes = "\\[" + whitespace + "*(" + characterEncoding + ")" + whitespace +
+        "*(?:" + operators + whitespace + "*(?:(['\"])((?:\\\\.|[^\\\\])*?)\\3|(" + identifier + ")|)|)" + whitespace + "*\\]",
+
+    // Prefer arguments quoted,
+    //   then not containing pseudos/brackets,
+    //   then attribute selectors/non-parenthetical expressions,
+    //   then anything else
+    // These preferences are here to reduce the number of selectors
+    //   needing tokenize in the PSEUDO preFilter
+    pseudos = ":(" + characterEncoding + ")(?:\\(((['\"])((?:\\\\.|[^\\\\])*?)\\3|((?:\\\\.|[^\\\\()[\\]]|" + attributes.replace( 3, 8 ) + ")*)|.*)\\)|)",
+
+    // Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
+    rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ),
+
+    rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
+    rcombinators = new RegExp( "^" + whitespace + "*([\\x20\\t\\r\\n\\f>+~])" + whitespace + "*" ),
+    rpseudo = new RegExp( pseudos ),
+    ridentifier = new RegExp( "^" + identifier + "$" ),
+
+    matchExpr = {
+        "ID": new RegExp( "^#(" + characterEncoding + ")" ),
+        "CLASS": new RegExp( "^\\.(" + characterEncoding + ")" ),
+        "NAME": new RegExp( "^\\[name=['\"]?(" + characterEncoding + ")['\"]?\\]" ),
+        "TAG": new RegExp( "^(" + characterEncoding.replace( "w", "w*" ) + ")" ),
+        "ATTR": new RegExp( "^" + attributes ),
+        "PSEUDO": new RegExp( "^" + pseudos ),
+        "CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +
+            "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +
+            "*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
+        // For use in libraries implementing .is()
+        // We use this for POS matching in `select`
+        "needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" +
+            whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
+    },
+
+    rsibling = /[\x20\t\r\n\f]*[+~]/,
+
+    rnative = /\{\s*\[native code\]\s*\}/,
+
+    // Easily-parseable/retrievable ID or TAG or CLASS selectors
+    rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,
+
+    rinputs = /^(?:input|select|textarea|button)$/i,
+    rheader = /^h\d$/i,
+
+    rescape = /'|\\/g,
+    rattributeQuotes = /\=[\x20\t\r\n\f]*([^'"\]]*)[\x20\t\r\n\f]*\]/g,
+
+    // CSS escapes http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
+    runescape = /\\([\da-fA-F]{1,6}[\x20\t\r\n\f]?|.)/g,
+    funescape = function( _, escaped ) {
+        var high = "0x" + escaped - 0x10000;
+        // NaN means non-codepoint
+        return high !== high ?
+            escaped :
+            // BMP codepoint
+            high < 0 ?
+                String.fromCharCode( high + 0x10000 ) :
+                // Supplemental Plane codepoint (surrogate pair)
+                String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
+    };
+
+// Use a stripped-down slice if we can't use a native one
+try {
+    slice.call( docElem.childNodes, 0 )[0].nodeType;
+} catch ( e ) {
+    slice = function( i ) {
+        var elem,
+            results = [];
+        for ( ; (elem = this[i]); i++ ) {
+            results.push( elem );
+        }
+        return results;
+    };
+}
+
+/**
+ * For feature detection
+ * @param {Function} fn The function to test for native support
+ */
+function isNative( fn ) {
+    return rnative.test( fn + "" );
+}
+
+/**
+ * Create key-value caches of limited size
+ * @returns {Function(string, Object)} Returns the Object data after storing it on itself with
+ *  property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
+ *  deleting the oldest entry
+ */
+function createCache() {
+    var cache,
+        keys = [];
+
+    return (cache = function( key, value ) {
+        // Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
+        if ( keys.push( key += " " ) > Expr.cacheLength ) {
+            // Only keep the most recent entries
+            delete cache[ keys.shift() ];
+        }
+        return (cache[ key ] = value);
+    });
+}
+
+/**
+ * Mark a function for special use by Sizzle
+ * @param {Function} fn The function to mark
+ */
+function markFunction( fn ) {
+    fn[ expando ] = true;
+    return fn;
+}
+
+/**
+ * Support testing using an element
+ * @param {Function} fn Passed the created div and expects a boolean result
+ */
+function assert( fn ) {
+    var div = document.createElement("div");
+
+    try {
+        return fn( div );
+    } catch (e) {
+        return false;
+    } finally {
+        // release memory in IE
+        div = null;
+    }
+}
+
+function Sizzle( selector, context, results, seed ) {
+    var match, elem, m, nodeType,
+        // QSA vars
+        i, groups, old, nid, newContext, newSelector;
+
+    if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {
+        setDocument( context );
+    }
+
+    context = context || document;
+    results = results || [];
+
+    if ( !selector || typeof selector !== "string" ) {
+        return results;
+    }
+
+    if ( (nodeType = context.nodeType) !== 1 && nodeType !== 9 ) {
+        return [];
+    }
+
+    if ( !documentIsXML && !seed ) {
+
+        // Shortcuts
+        if ( (match = rquickExpr.exec( selector )) ) {
+            // Speed-up: Sizzle("#ID")
+            if ( (m = match[1]) ) {
+                if ( nodeType === 9 ) {
+                    elem = context.getElementById( m );
+                    // Check parentNode to catch when Blackberry 4.6 returns
+                    // nodes that are no longer in the document #6963
+                    if ( elem && elem.parentNode ) {
+                        // Handle the case where IE, Opera, and Webkit return items
+                        // by name instead of ID
+                        if ( elem.id === m ) {
+                            results.push( elem );
+                            return results;
+                        }
+                    } else {
+                        return results;
+                    }
+                } else {
+                    // Context is not a document
+                    if ( context.ownerDocument && (elem = context.ownerDocument.getElementById( m )) &&
+                        contains( context, elem ) && elem.id === m ) {
+                        results.push( elem );
+                        return results;
+                    }
+                }
+
+            // Speed-up: Sizzle("TAG")
+            } else if ( match[2] ) {
+                push.apply( results, slice.call(context.getElementsByTagName( selector ), 0) );
+                return results;
+
+            // Speed-up: Sizzle(".CLASS")
+            } else if ( (m = match[3]) && support.getByClassName && context.getElementsByClassName ) {
+                push.apply( results, slice.call(context.getElementsByClassName( m ), 0) );
+                return results;
+            }
+        }
+
+        // QSA path
+        if ( support.qsa && !rbuggyQSA.test(selector) ) {
+            old = true;
+            nid = expando;
+            newContext = context;
+            newSelector = nodeType === 9 && selector;
+
+            // qSA works strangely on Element-rooted queries
+            // We can work around this by specifying an extra ID on the root
+            // and working up from there (Thanks to Andrew Dupont for the technique)
+            // IE 8 doesn't work on object elements
+            if ( nodeType === 1 && context.nodeName.toLowerCase() !== "object" ) {
+                groups = tokenize( selector );
+
+                if ( (old = context.getAttribute("id")) ) {
+                    nid = old.replace( rescape, "\\$&" );
+                } else {
+                    context.setAttribute( "id", nid );
+                }
+                nid = "[id='" + nid + "'] ";
+
+                i = groups.length;
+                while ( i-- ) {
+                    groups[i] = nid + toSelector( groups[i] );
+                }
+                newContext = rsibling.test( selector ) && context.parentNode || context;
+                newSelector = groups.join(",");
+            }
+
+            if ( newSelector ) {
+                try {
+                    push.apply( results, slice.call( newContext.querySelectorAll(
+                        newSelector
+                    ), 0 ) );
+                    return results;
+                } catch(qsaError) {
+                } finally {
+                    if ( !old ) {
+                        context.removeAttribute("id");
+                    }
+                }
+            }
+        }
+    }
+
+    // All others
+    return select( selector.replace( rtrim, "$1" ), context, results, seed );
+}
+
+/**
+ * Detect xml
+ * @param {Element|Object} elem An element or a document
+ */
+isXML = Sizzle.isXML = function( elem ) {
+    // documentElement is verified for cases where it doesn't yet exist
+    // (such as loading iframes in IE - #4833)
+    var documentElement = elem && (elem.ownerDocument || elem).documentElement;
+    return documentElement ? documentElement.nodeName !== "HTML" : false;
+};
+
+/**
+ * Sets document-related variables once based on the current document
+ * @param {Element|Object} [doc] An element or document object to use to set the document
+ * @returns {Object} Returns the current document
+ */
+setDocument = Sizzle.setDocument = function( node ) {
+    var doc = node ? node.ownerDocument || node : preferredDoc;
+
+    // If no document and documentElement is available, return
+    if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {
+        return document;
+    }
+
+    // Set our document
+    document = doc;
+    docElem = doc.documentElement;
+
+    // Support tests
+    documentIsXML = isXML( doc );
+
+    // Check if getElementsByTagName("*") returns only elements
+    support.tagNameNoComments = assert(function( div ) {
+        div.appendChild( doc.createComment("") );
+        return !div.getElementsByTagName("*").length;
+    });
+
+    // Check if attributes should be retrieved by attribute nodes
+    support.attributes = assert(function( div ) {
+        div.innerHTML = "<select></select>";
+        var type = typeof div.lastChild.getAttribute("multiple");
+        // IE8 returns a string for some attributes even when not present
+        return type !== "boolean" && type !== "string";
+    });
+
+    // Check if getElementsByClassName can be trusted
+    support.getByClassName = assert(function( div ) {
+        // Opera can't find a second classname (in 9.6)
+        div.innerHTML = "<div class='hidden e'></div><div class='hidden'></div>";
+        if ( !div.getElementsByClassName || !div.getElementsByClassName("e").length ) {
+            return false;
+        }
+
+        // Safari 3.2 caches class attributes and doesn't catch changes
+        div.lastChild.className = "e";
+        return div.getElementsByClassName("e").length === 2;
+    });
+
+    // Check if getElementById returns elements by name
+    // Check if getElementsByName privileges form controls or returns elements by ID
+    support.getByName = assert(function( div ) {
+        // Inject content
+        div.id = expando + 0;
+        div.innerHTML = "<a name='" + expando + "'></a><div name='" + expando + "'></div>";
+        docElem.insertBefore( div, docElem.firstChild );
+
+        // Test
+        var pass = doc.getElementsByName &&
+            // buggy browsers will return fewer than the correct 2
+            doc.getElementsByName( expando ).length === 2 +
+            // buggy browsers will return more than the correct 0
+            doc.getElementsByName( expando + 0 ).length;
+        support.getIdNotName = !doc.getElementById( expando );
+
+        // Cleanup
+        docElem.removeChild( div );
+
+        return pass;
+    });
+
+    // IE6/7 return modified attributes
+    Expr.attrHandle = assert(function( div ) {
+        div.innerHTML = "<a href='#'></a>";
+        return div.firstChild && typeof div.firstChild.getAttribute !== strundefined &&
+            div.firstChild.getAttribute("href") === "#";
+    }) ?
+        {} :
+        {
+            "href": function( elem ) {
+                return elem.getAttribute( "href", 2 );
+            },
+            "type": function( elem ) {
+                return elem.getAttribute("type");
+            }
+        };
+
+    // ID find and filter
+    if ( support.getIdNotName ) {
+        Expr.find["ID"] = function( id, context ) {
+            if ( typeof context.getElementById !== strundefined && !documentIsXML ) {
+                var m = context.getElementById( id );
+                // Check parentNode to catch when Blackberry 4.6 returns
+                // nodes that are no longer in the document #6963
+                return m && m.parentNode ? [m] : [];
+            }
+        };
+        Expr.filter["ID"] = function( id ) {
+            var attrId = id.replace( runescape, funescape );
+            return function( elem ) {
+                return elem.getAttribute("id") === attrId;
+            };
+        };
+    } else {
+        Expr.find["ID"] = function( id, context ) {
+            if ( typeof context.getElementById !== strundefined && !documentIsXML ) {
+                var m = context.getElementById( id );
+
+                return m ?
+                    m.id === id || typeof m.getAttributeNode !== strundefined && m.getAttributeNode("id").value === id ?
+                        [m] :
+                        undefined :
+                    [];
+            }
+        };
+        Expr.filter["ID"] =  function( id ) {
+            var attrId = id.replace( runescape, funescape );
+            return function( elem ) {
+                var node = typeof elem.getAttributeNode !== strundefined && elem.getAttributeNode("id");
+                return node && node.value === attrId;
+            };
+        };
+    }
+
+    // Tag
+    Expr.find["TAG"] = support.tagNameNoComments ?
+        function( tag, context ) {
+            if ( typeof context.getElementsByTagName !== strundefined ) {
+                return context.getElementsByTagName( tag );
+            }
+        } :
+        function( tag, context ) {
+            var elem,
+                tmp = [],
+                i = 0,
+                results = context.getElementsByTagName( tag );
+
+            // Filter out possible comments
+            if ( tag === "*" ) {
+                for ( ; (elem = results[i]); i++ ) {
+                    if ( elem.nodeType === 1 ) {
+                        tmp.push( elem );
+                    }
+                }
+
+                return tmp;
+            }
+            return results;
+        };
+
+    // Name
+    Expr.find["NAME"] = support.getByName && function( tag, context ) {
+        if ( typeof context.getElementsByName !== strundefined ) {
+            return context.getElementsByName( name );
+        }
+    };
+
+    // Class
+    Expr.find["CLASS"] = support.getByClassName && function( className, context ) {
+        if ( typeof context.getElementsByClassName !== strundefined && !documentIsXML ) {
+            return context.getElementsByClassName( className );
+        }
+    };
+
+    // QSA and matchesSelector support
+
+    // matchesSelector(:active) reports false when true (IE9/Opera 11.5)
+    rbuggyMatches = [];
+
+    // qSa(:focus) reports false when true (Chrome 21),
+    // no need to also add to buggyMatches since matches checks buggyQSA
+    // A support test would require too much code (would include document ready)
+    rbuggyQSA = [ ":focus" ];
+
+    if ( (support.qsa = isNative(doc.querySelectorAll)) ) {
+        // Build QSA regex
+        // Regex strategy adopted from Diego Perini
+        assert(function( div ) {
+            // Select is set to empty string on purpose
+            // This is to test IE's treatment of not explictly
+            // setting a boolean content attribute,
+            // since its presence should be enough
+            // http://bugs.jquery.com/ticket/12359
+            div.innerHTML = "<select><option selected=''></option></select>";
+
+            // IE8 - Some boolean attributes are not treated correctly
+            if ( !div.querySelectorAll("[selected]").length ) {
+                rbuggyQSA.push( "\\[" + whitespace + "*(?:checked|disabled|ismap|multiple|readonly|selected|value)" );
+            }
+
+            // Webkit/Opera - :checked should return selected option elements
+            // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
+            // IE8 throws error here and will not see later tests
+            if ( !div.querySelectorAll(":checked").length ) {
+                rbuggyQSA.push(":checked");
+            }
+        });
+
+        assert(function( div ) {
+
+            // Opera 10-12/IE8 - ^= $= *= and empty values
+            // Should not select anything
+            div.innerHTML = "<input type='hidden' i=''/>";
+            if ( div.querySelectorAll("[i^='']").length ) {
+                rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:\"\"|'')" );
+            }
+
+            // FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
+            // IE8 throws error here and will not see later tests
+            if ( !div.querySelectorAll(":enabled").length ) {
+                rbuggyQSA.push( ":enabled", ":disabled" );
+            }
+
+            // Opera 10-11 does not throw on post-comma invalid pseudos
+            div.querySelectorAll("*,:x");
+            rbuggyQSA.push(",.*:");
+        });
+    }
+
+    if ( (support.matchesSelector = isNative( (matches = docElem.matchesSelector ||
+        docElem.mozMatchesSelector ||
+        docElem.webkitMatchesSelector ||
+        docElem.oMatchesSelector ||
+        docElem.msMatchesSelector) )) ) {
+
+        assert(function( div ) {
+            // Check to see if it's possible to do matchesSelector
+            // on a disconnected node (IE 9)
+            support.disconnectedMatch = matches.call( div, "div" );
+
+            // This should fail with an exception
+            // Gecko does not error, returns false instead
+            matches.call( div, "[s!='']:x" );
+            rbuggyMatches.push( "!=", pseudos );
+        });
+    }
+
+    rbuggyQSA = new RegExp( rbuggyQSA.join("|") );
+    rbuggyMatches = new RegExp( rbuggyMatches.join("|") );
+
+    // Element contains another
+    // Purposefully does not implement inclusive descendent
+    // As in, an element does not contain itself
+    contains = isNative(docElem.contains) || docElem.compareDocumentPosition ?
+        function( a, b ) {
+            var adown = a.nodeType === 9 ? a.documentElement : a,
+                bup = b && b.parentNode;
+            return a === bup || !!( bup && bup.nodeType === 1 && (
+                adown.contains ?
+                    adown.contains( bup ) :
+                    a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
+            ));
+        } :
+        function( a, b ) {
+            if ( b ) {
+                while ( (b = b.parentNode) ) {
+                    if ( b === a ) {
+                        return true;
+                    }
+                }
+            }
+            return false;
+        };
+
+    // Document order sorting
+    sortOrder = docElem.compareDocumentPosition ?
+    function( a, b ) {
+        var compare;
+
+        if ( a === b ) {
+            hasDuplicate = true;
+            return 0;
+        }
+
+        if ( (compare = b.compareDocumentPosition && a.compareDocumentPosition && a.compareDocumentPosition( b )) ) {
+            if ( compare & 1 || a.parentNode && a.parentNode.nodeType === 11 ) {
+                if ( a === doc || contains( preferredDoc, a ) ) {
+                    return -1;
+                }
+                if ( b === doc || contains( preferredDoc, b ) ) {
+                    return 1;
+                }
+                return 0;
+            }
+            return compare & 4 ? -1 : 1;
+        }
+
+        return a.compareDocumentPosition ? -1 : 1;
+    } :
+    function( a, b ) {
+        var cur,
+            i = 0,
+            aup = a.parentNode,
+            bup = b.parentNode,
+            ap = [ a ],
+            bp = [ b ];
+
+        // The nodes are identical, we can exit early
+        if ( a === b ) {
+            hasDuplicate = true;
+            return 0;
+
+        // Fallback to using sourceIndex (in IE) if it's available on both nodes
+        } else if ( a.sourceIndex && b.sourceIndex ) {
+            return ( ~b.sourceIndex || MAX_NEGATIVE ) - ( contains( preferredDoc, a ) && ~a.sourceIndex || MAX_NEGATIVE );
+
+        // Parentless nodes are either documents or disconnected
+        } else if ( !aup || !bup ) {
+            return a === doc ? -1 :
+                b === doc ? 1 :
+                aup ? -1 :
+                bup ? 1 :
+                0;
+
+        // If the nodes are siblings, we can do a quick check
+        } else if ( aup === bup ) {
+            return siblingCheck( a, b );
+        }
+
+        // Otherwise we need full lists of their ancestors for comparison
+        cur = a;
+        while ( (cur = cur.parentNode) ) {
+            ap.unshift( cur );
+        }
+        cur = b;
+        while ( (cur = cur.parentNode) ) {
+            bp.unshift( cur );
+        }
+
+        // Walk down the tree looking for a discrepancy
+        while ( ap[i] === bp[i] ) {
+            i++;
+        }
+
+        return i ?
+            // Do a sibling check if the nodes have a common ancestor
+            siblingCheck( ap[i], bp[i] ) :
+
+            // Otherwise nodes in our document sort first
+            ap[i] === preferredDoc ? -1 :
+            bp[i] === preferredDoc ? 1 :
+            0;
+    };
+
+    // Always assume the presence of duplicates if sort doesn't
+    // pass them to our comparison function (as in Google Chrome).
+    hasDuplicate = false;
+    [0, 0].sort( sortOrder );
+    support.detectDuplicates = hasDuplicate;
+
+    return document;
+};
+
+Sizzle.matches = function( expr, elements ) {
+    return Sizzle( expr, null, null, elements );
+};
+
+Sizzle.matchesSelector = function( elem, expr ) {
+    // Set document vars if needed
+    if ( ( elem.ownerDocument || elem ) !== document ) {
+        setDocument( elem );
+    }
+
+    // Make sure that attribute selectors are quoted
+    expr = expr.replace( rattributeQuotes, "='$1']" );
+
+    // rbuggyQSA always contains :focus, so no need for an existence check
+    if ( support.matchesSelector && !documentIsXML && (!rbuggyMatches || !rbuggyMatches.test(expr)) && !rbuggyQSA.test(expr) ) {
+        try {
+            var ret = matches.call( elem, expr );
+
+            // IE 9's matchesSelector returns false on disconnected nodes
+            if ( ret || support.disconnectedMatch ||
+                    // As well, disconnected nodes are said to be in a document
+                    // fragment in IE 9
+                    elem.document && elem.document.nodeType !== 11 ) {
+                return ret;
+            }
+        } catch(e) {}
+    }
+
+    return Sizzle( expr, document, null, [elem] ).length > 0;
+};
+
+Sizzle.contains = function( context, elem ) {
+    // Set document vars if needed
+    if ( ( context.ownerDocument || context ) !== document ) {
+        setDocument( context );
+    }
+    return contains( context, elem );
+};
+
+Sizzle.attr = function( elem, name ) {
+    var val;
+
+    // Set document vars if needed
+    if ( ( elem.ownerDocument || elem ) !== document ) {
+        setDocument( elem );
+    }
+
+    if ( !documentIsXML ) {
+        name = name.toLowerCase();
+    }
+    if ( (val = Expr.attrHandle[ name ]) ) {
+        return val( elem );
+    }
+    if ( documentIsXML || support.attributes ) {
+        return elem.getAttribute( name );
+    }
+    return ( (val = elem.getAttributeNode( name )) || elem.getAttribute( name ) ) && elem[ name ] === true ?
+        name :
+        val && val.specified ? val.value : null;
+};
+
+Sizzle.error = function( msg ) {
+    throw new Error( "Syntax error, unrecognized expression: " + msg );
+};
+
+// Document sorting and removing duplicates
+Sizzle.uniqueSort = function( results ) {
+    var elem,
+        duplicates = [],
+        i = 1,
+        j = 0;
+
+    // Unless we *know* we can detect duplicates, assume their presence
+    hasDuplicate = !support.detectDuplicates;
+    results.sort( sortOrder );
+
+    if ( hasDuplicate ) {
+        for ( ; (elem = results[i]); i++ ) {
+            if ( elem === results[ i - 1 ] ) {
+                j = duplicates.push( i );
+            }
+        }
+        while ( j-- ) {
+            results.splice( duplicates[ j ], 1 );
+        }
+    }
+
+    return results;
+};
+
+function siblingCheck( a, b ) {
+    var cur = a && b && a.nextSibling;
+
+    for ( ; cur; cur = cur.nextSibling ) {
+        if ( cur === b ) {
+            return -1;
+        }
+    }
+
+    return a ? 1 : -1;
+}
+
+// Returns a function to use in pseudos for input types
+function createInputPseudo( type ) {
+    return function( elem ) {
+        var name = elem.nodeName.toLowerCase();
+        return name === "input" && elem.type === type;
+    };
+}
+
+// Returns a function to use in pseudos for buttons
+function createButtonPseudo( type ) {
+    return function( elem ) {
+        var name = elem.nodeName.toLowerCase();
+        return (name === "input" || name === "button") && elem.type === type;
+    };
+}
+
+// Returns a function to use in pseudos for positionals
+function createPositionalPseudo( fn ) {
+    return markFunction(function( argument ) {
+        argument = +argument;
+        return markFunction(function( seed, matches ) {
+            var j,
+                matchIndexes = fn( [], seed.length, argument ),
+                i = matchIndexes.length;
+
+            // Match elements found at the specified indexes
+            while ( i-- ) {
+                if ( seed[ (j = matchIndexes[i]) ] ) {
+                    seed[j] = !(matches[j] = seed[j]);
+                }
+            }
+        });
+    });
+}
+
+/**
+ * Utility function for retrieving the text value of an array of DOM nodes
+ * @param {Array|Element} elem
+ */
+getText = Sizzle.getText = function( elem ) {
+    var node,
+        ret = "",
+        i = 0,
+        nodeType = elem.nodeType;
+
+    if ( !nodeType ) {
+        // If no nodeType, this is expected to be an array
+        for ( ; (node = elem[i]); i++ ) {
+            // Do not traverse comment nodes
+            ret += getText( node );
+        }
+    } else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
+        // Use textContent for elements
+        // innerText usage removed for consistency of new lines (see #11153)
+        if ( typeof elem.textContent === "string" ) {
+            return elem.textContent;
+        } else {
+            // Traverse its children
+            for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
+                ret += getText( elem );
+            }
+        }
+    } else if ( nodeType === 3 || nodeType === 4 ) {
+        return elem.nodeValue;
+    }
+    // Do not include comment or processing instruction nodes
+
+    return ret;
+};
+
+Expr = Sizzle.selectors = {
+
+    // Can be adjusted by the user
+    cacheLength: 50,
+
+    createPseudo: markFunction,
+
+    match: matchExpr,
+
+    find: {},
+
+    relative: {
+        ">": { dir: "parentNode", first: true },
+        " ": { dir: "parentNode" },
+        "+": { dir: "previousSibling", first: true },
+        "~": { dir: "previousSibling" }
+    },
+
+    preFilter: {
+        "ATTR": function( match ) {
+            match[1] = match[1].replace( runescape, funescape );
+
+            // Move the given value to match[3] whether quoted or unquoted
+            match[3] = ( match[4] || match[5] || "" ).replace( runescape, funescape );
+
+            if ( match[2] === "~=" ) {
+                match[3] = " " + match[3] + " ";
+            }
+
+            return match.slice( 0, 4 );
+        },
+
+        "CHILD": function( match ) {
+            /* matches from matchExpr["CHILD"]
+                1 type (only|nth|...)
+                2 what (child|of-type)
+                3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
+                4 xn-component of xn+y argument ([+-]?\d*n|)
+                5 sign of xn-component
+                6 x of xn-component
+                7 sign of y-component
+                8 y of y-component
+            */
+            match[1] = match[1].toLowerCase();
+
+            if ( match[1].slice( 0, 3 ) === "nth" ) {
+                // nth-* requires argument
+                if ( !match[3] ) {
+                    Sizzle.error( match[0] );
+                }
+
+                // numeric x and y parameters for Expr.filter.CHILD
+                // remember that false/true cast respectively to 0/1
+                match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) );
+                match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" );
+
+            // other types prohibit arguments
+            } else if ( match[3] ) {
+                Sizzle.error( match[0] );
+            }
+
+            return match;
+        },
+
+        "PSEUDO": function( match ) {
+            var excess,
+                unquoted = !match[5] && match[2];
+
+            if ( matchExpr["CHILD"].test( match[0] ) ) {
+                return null;
+            }
+
+            // Accept quoted arguments as-is
+            if ( match[4] ) {
+                match[2] = match[4];
+
+            // Strip excess characters from unquoted arguments
+            } else if ( unquoted && rpseudo.test( unquoted ) &&
+                // Get excess from tokenize (recursively)
+                (excess = tokenize( unquoted, true )) &&
+                // advance to the next closing parenthesis
+                (excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) {
+
+                // excess is a negative index
+                match[0] = match[0].slice( 0, excess );
+                match[2] = unquoted.slice( 0, excess );
+            }
+
+            // Return only captures needed by the pseudo filter method (type and argument)
+            return match.slice( 0, 3 );
+        }
+    },
+
+    filter: {
+
+        "TAG": function( nodeName ) {
+            if ( nodeName === "*" ) {
+                return function() { return true; };
+            }
+
+            nodeName = nodeName.replace( runescape, funescape ).toLowerCase();
+            return function( elem ) {
+                return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
+            };
+        },
+
+        "CLASS": function( className ) {
+            var pattern = classCache[ className + " " ];
+
+            return pattern ||
+                (pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) &&
+                classCache( className, function( elem ) {
+                    return pattern.test( elem.className || (typeof elem.getAttribute !== strundefined && elem.getAttribute("class")) || "" );
+                });
+        },
+
+        "ATTR": function( name, operator, check ) {
+            return function( elem ) {
+                var result = Sizzle.attr( elem, name );
+
+                if ( result == null ) {
+                    return operator === "!=";
+                }
+                if ( !operator ) {
+                    return true;
+                }
+
+                result += "";
+
+                return operator === "=" ? result === check :
+                    operator === "!=" ? result !== check :
+                    operator === "^=" ? check && result.indexOf( check ) === 0 :
+                    operator === "*=" ? check && result.indexOf( check ) > -1 :
+                    operator === "$=" ? check && result.substr( result.length - check.length ) === check :
+                    operator === "~=" ? ( " " + result + " " ).indexOf( check ) > -1 :
+                    operator === "|=" ? result === check || result.substr( 0, check.length + 1 ) === check + "-" :
+                    false;
+            };
+        },
+
+        "CHILD": function( type, what, argument, first, last ) {
+            var simple = type.slice( 0, 3 ) !== "nth",
+                forward = type.slice( -4 ) !== "last",
+                ofType = what === "of-type";
+
+            return first === 1 && last === 0 ?
+
+                // Shortcut for :nth-*(n)
+                function( elem ) {
+                    return !!elem.parentNode;
+                } :
+
+                function( elem, context, xml ) {
+                    var cache, outerCache, node, diff, nodeIndex, start,
+                        dir = simple !== forward ? "nextSibling" : "previousSibling",
+                        parent = elem.parentNode,
+                        name = ofType && elem.nodeName.toLowerCase(),
+                        useCache = !xml && !ofType;
+
+                    if ( parent ) {
+
+                        // :(first|last|only)-(child|of-type)
+                        if ( simple ) {
+                            while ( dir ) {
+                                node = elem;
+                                while ( (node = node[ dir ]) ) {
+                                    if ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) {
+                                        return false;
+                                    }
+                                }
+                                // Reverse direction for :only-* (if we haven't yet done so)
+                                start = dir = type === "only" && !start && "nextSibling";
+                            }
+                            return true;
+                        }
+
+                        start = [ forward ? parent.firstChild : parent.lastChild ];
+
+                        // non-xml :nth-child(...) stores cache data on `parent`
+                        if ( forward && useCache ) {
+                            // Seek `elem` from a previously-cached index
+                            outerCache = parent[ expando ] || (parent[ expando ] = {});
+                            cache = outerCache[ type ] || [];
+                            nodeIndex = cache[0] === dirruns && cache[1];
+                            diff = cache[0] === dirruns && cache[2];
+                            node = nodeIndex && parent.childNodes[ nodeIndex ];
+
+                            while ( (node = ++nodeIndex && node && node[ dir ] ||
+
+                                // Fallback to seeking `elem` from the start
+                                (diff = nodeIndex = 0) || start.pop()) ) {
+
+                                // When found, cache indexes on `parent` and break
+                                if ( node.nodeType === 1 && ++diff && node === elem ) {
+                                    outerCache[ type ] = [ dirruns, nodeIndex, diff ];
+                                    break;
+                                }
+                            }
+
+                        // Use previously-cached element index if available
+                        } else if ( useCache && (cache = (elem[ expando ] || (elem[ expando ] = {}))[ type ]) && cache[0] === dirruns ) {
+                            diff = cache[1];
+
+                        // xml :nth-child(...) or :nth-last-child(...) or :nth(-last)?-of-type(...)
+                        } else {
+                            // Use the same loop as above to seek `elem` from the start
+                            while ( (node = ++nodeIndex && node && node[ dir ] ||
+                                (diff = nodeIndex = 0) || start.pop()) ) {
+
+                                if ( ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) && ++diff ) {
+                                    // Cache the index of each encountered element
+                                    if ( useCache ) {
+                                        (node[ expando ] || (node[ expando ] = {}))[ type ] = [ dirruns, diff ];
+                                    }
+
+                                    if ( node === elem ) {
+                                        break;
+                                    }
+                                }
+                            }
+                        }
+
+                        // Incorporate the offset, then check against cycle size
+                        diff -= last;
+                        return diff === first || ( diff % first === 0 && diff / first >= 0 );
+                    }
+                };
+        },
+
+        "PSEUDO": function( pseudo, argument ) {
+            // pseudo-class names are case-insensitive
+            // http://www.w3.org/TR/selectors/#pseudo-classes
+            // Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
+            // Remember that setFilters inherits from pseudos
+            var args,
+                fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
+                    Sizzle.error( "unsupported pseudo: " + pseudo );
+
+            // The user may use createPseudo to indicate that
+            // arguments are needed to create the filter function
+            // just as Sizzle does
+            if ( fn[ expando ] ) {
+                return fn( argument );
+            }
+
+            // But maintain support for old signatures
+            if ( fn.length > 1 ) {
+                args = [ pseudo, pseudo, "", argument ];
+                return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
+                    markFunction(function( seed, matches ) {
+                        var idx,
+                            matched = fn( seed, argument ),
+                            i = matched.length;
+                        while ( i-- ) {
+                            idx = indexOf.call( seed, matched[i] );
+                            seed[ idx ] = !( matches[ idx ] = matched[i] );
+                        }
+                    }) :
+                    function( elem ) {
+                        return fn( elem, 0, args );
+                    };
+            }
+
+            return fn;
+        }
+    },
+
+    pseudos: {
+        // Potentially complex pseudos
+        "not": markFunction(function( selector ) {
+            // Trim the selector passed to compile
+            // to avoid treating leading and trailing
+            // spaces as combinators
+            var input = [],
+                results = [],
+                matcher = compile( selector.replace( rtrim, "$1" ) );
+
+            return matcher[ expando ] ?
+                markFunction(function( seed, matches, context, xml ) {
+                    var elem,
+                        unmatched = matcher( seed, null, xml, [] ),
+                        i = seed.length;
+
+                    // Match elements unmatched by `matcher`
+                    while ( i-- ) {
+                        if ( (elem = unmatched[i]) ) {
+                            seed[i] = !(matches[i] = elem);
+                        }
+                    }
+                }) :
+                function( elem, context, xml ) {
+                    input[0] = elem;
+                    matcher( input, null, xml, results );
+                    return !results.pop();
+                };
+        }),
+
+        "has": markFunction(function( selector ) {
+            return function( elem ) {
+                return Sizzle( selector, elem ).length > 0;
+            };
+        }),
+
+        "contains": markFunction(function( text ) {
+            return function( elem ) {
+                return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1;
+            };
+        }),
+
+        // "Whether an element is represented by a :lang() selector
+        // is based solely on the element's language value
+        // being equal to the identifier C,
+        // or beginning with the identifier C immediately followed by "-".
+        // The matching of C against the element's language value is performed case-insensitively.
+        // The identifier C does not have to be a valid language name."
+        // http://www.w3.org/TR/selectors/#lang-pseudo
+        "lang": markFunction( function( lang ) {
+            // lang value must be a valid identifider
+            if ( !ridentifier.test(lang || "") ) {
+                Sizzle.error( "unsupported lang: " + lang );
+            }
+            lang = lang.replace( runescape, funescape ).toLowerCase();
+            return function( elem ) {
+                var elemLang;
+                do {
+                    if ( (elemLang = documentIsXML ?
+                        elem.getAttribute("xml:lang") || elem.getAttribute("lang") :
+                        elem.lang) ) {
+
+                        elemLang = elemLang.toLowerCase();
+                        return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
+                    }
+                } while ( (elem = elem.parentNode) && elem.nodeType === 1 );
+                return false;
+            };
+        }),
+
+        // Miscellaneous
+        "target": function( elem ) {
+            var hash = window.location && window.location.hash;
+            return hash && hash.slice( 1 ) === elem.id;
+        },
+
+        "root": function( elem ) {
+            return elem === docElem;
+        },
+
+        "focus": function( elem ) {
+            return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);
+        },
+
+        // Boolean properties
+        "enabled": function( elem ) {
+            return elem.disabled === false;
+        },
+
+        "disabled": function( elem ) {
+            return elem.disabled === true;
+        },
+
+        "checked": function( elem ) {
+            // In CSS3, :checked should return both checked and selected elements
+            // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
+            var nodeName = elem.nodeName.toLowerCase();
+            return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected);
+        },
+
+        "selected": function( elem ) {
+            // Accessing this property makes selected-by-default
+            // options in Safari work properly
+            if ( elem.parentNode ) {
+                elem.parentNode.selectedIndex;
+            }
+
+            return elem.selected === true;
+        },
+
+        // Contents
+        "empty": function( elem ) {
+            // http://www.w3.org/TR/selectors/#empty-pseudo
+            // :empty is only affected by element nodes and content nodes(including text(3), cdata(4)),
+            //   not comment, processing instructions, or others
+            // Thanks to Diego Perini for the nodeName shortcut
+            //   Greater than "@" means alpha characters (specifically not starting with "#" or "?")
+            for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
+                if ( elem.nodeName > "@" || elem.nodeType === 3 || elem.nodeType === 4 ) {
+                    return false;
+                }
+            }
+            return true;
+        },
+
+        "parent": function( elem ) {
+            return !Expr.pseudos["empty"]( elem );
+        },
+
+        // Element/input types
+        "header": function( elem ) {
+            return rheader.test( elem.nodeName );
+        },
+
+        "input": function( elem ) {
+            return rinputs.test( elem.nodeName );
+        },
+
+        "button": function( elem ) {
+            var name = elem.nodeName.toLowerCase();
+            return name === "input" && elem.type === "button" || name === "button";
+        },
+
+        "text": function( elem ) {
+            var attr;
+            // IE6 and 7 will map elem.type to 'text' for new HTML5 types (search, etc)
+            // use getAttribute instead to test this case
+            return elem.nodeName.toLowerCase() === "input" &&
+                elem.type === "text" &&
+                ( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === elem.type );
+        },
+
+        // Position-in-collection
+        "first": createPositionalPseudo(function() {
+            return [ 0 ];
+        }),
+
+        "last": createPositionalPseudo(function( matchIndexes, length ) {
+            return [ length - 1 ];
+        }),
+
+        "eq": createPositionalPseudo(function( matchIndexes, length, argument ) {
+            return [ argument < 0 ? argument + length : argument ];
+        }),
+
+        "even": createPositionalPseudo(function( matchIndexes, length ) {
+            var i = 0;
+            for ( ; i < length; i += 2 ) {
+                matchIndexes.push( i );
+            }
+            return matchIndexes;
+        }),
+
+        "odd": createPositionalPseudo(function( matchIndexes, length ) {
+            var i = 1;
+            for ( ; i < length; i += 2 ) {
+                matchIndexes.push( i );
+            }
+            return matchIndexes;
+        }),
+
+        "lt": createPositionalPseudo(function( matchIndexes, length, argument ) {
+            var i = argument < 0 ? argument + length : argument;
+            for ( ; --i >= 0; ) {
+                matchIndexes.push( i );
+            }
+            return matchIndexes;
+        }),
+
+        "gt": createPositionalPseudo(function( matchIndexes, length, argument ) {
+            var i = argument < 0 ? argument + length : argument;
+            for ( ; ++i < length; ) {
+                matchIndexes.push( i );
+            }
+            return matchIndexes;
+        })
+    }
+};
+
+// Add button/input type pseudos
+for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
+    Expr.pseudos[ i ] = createInputPseudo( i );
+}
+for ( i in { submit: true, reset: true } ) {
+    Expr.pseudos[ i ] = createButtonPseudo( i );
+}
+
+function tokenize( selector, parseOnly ) {
+    var matched, match, tokens, type,
+        soFar, groups, preFilters,
+        cached = tokenCache[ selector + " " ];
+
+    if ( cached ) {
+        return parseOnly ? 0 : cached.slice( 0 );
+    }
+
+    soFar = selector;
+    groups = [];
+    preFilters = Expr.preFilter;
+
+    while ( soFar ) {
+
+        // Comma and first run
+        if ( !matched || (match = rcomma.exec( soFar )) ) {
+            if ( match ) {
+                // Don't consume trailing commas as valid
+                soFar = soFar.slice( match[0].length ) || soFar;
+            }
+            groups.push( tokens = [] );
+        }
+
+        matched = false;
+
+        // Combinators
+        if ( (match = rcombinators.exec( soFar )) ) {
+            matched = match.shift();
+            tokens.push( {
+                value: matched,
+                // Cast descendant combinators to space
+                type: match[0].replace( rtrim, " " )
+            } );
+            soFar = soFar.slice( matched.length );
+        }
+
+        // Filters
+        for ( type in Expr.filter ) {
+            if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] ||
+                (match = preFilters[ type ]( match ))) ) {
+                matched = match.shift();
+                tokens.push( {
+                    value: matched,
+                    type: type,
+                    matches: match
+                } );
+                soFar = soFar.slice( matched.length );
+            }
+        }
+
+        if ( !matched ) {
+            break;
+        }
+    }
+
+    // Return the length of the invalid excess
+    // if we're just parsing
+    // Otherwise, throw an error or return tokens
+    return parseOnly ?
+        soFar.length :
+        soFar ?
+            Sizzle.error( selector ) :
+            // Cache the tokens
+            tokenCache( selector, groups ).slice( 0 );
+}
+
+function toSelector( tokens ) {
+    var i = 0,
+        len = tokens.length,
+        selector = "";
+    for ( ; i < len; i++ ) {
+        selector += tokens[i].value;
+    }
+    return selector;
+}
+
+function addCombinator( matcher, combinator, base ) {
+    var dir = combinator.dir,
+        checkNonElements = base && combinator.dir === "parentNode",
+        doneName = done++;
+
+    return combinator.first ?
+        // Check against closest ancestor/preceding element
+        function( elem, context, xml ) {
+            while ( (elem = elem[ dir ]) ) {
+                if ( elem.nodeType === 1 || checkNonElements ) {
+                    return matcher( elem, context, xml );
+                }
+            }
+        } :
+
+        // Check against all ancestor/preceding elements
+        function( elem, context, xml ) {
+            var data, cache, outerCache,
+                dirkey = dirruns + " " + doneName;
+
+            // We can't set arbitrary data on XML nodes, so they don't benefit from dir caching
+            if ( xml ) {
+                while ( (elem = elem[ dir ]) ) {
+                    if ( elem.nodeType === 1 || checkNonElements ) {
+                        if ( matcher( elem, context, xml ) ) {
+                            return true;
+                        }
+                    }
+                }
+            } else {
+                while ( (elem = elem[ dir ]) ) {
+                    if ( elem.nodeType === 1 || checkNonElements ) {
+                        outerCache = elem[ expando ] || (elem[ expando ] = {});
+                        if ( (cache = outerCache[ dir ]) && cache[0] === dirkey ) {
+                            if ( (data = cache[1]) === true || data === cachedruns ) {
+                                return data === true;
+                            }
+                        } else {
+                            cache = outerCache[ dir ] = [ dirkey ];
+                            cache[1] = matcher( elem, context, xml ) || cachedruns;
+                            if ( cache[1] === true ) {
+                                return true;
+                            }
+                        }
+                    }
+                }
+            }
+        };
+}
+
+function elementMatcher( matchers ) {
+    return matchers.length > 1 ?
+        function( elem, context, xml ) {
+            var i = matchers.length;
+            while ( i-- ) {
+                if ( !matchers[i]( elem, context, xml ) ) {
+                    return false;
+                }
+            }
+            return true;
+        } :
+        matchers[0];
+}
+
+function condense( unmatched, map, filter, context, xml ) {
+    var elem,
+        newUnmatched = [],
+        i = 0,
+        len = unmatched.length,
+        mapped = map != null;
+
+    for ( ; i < len; i++ ) {
+        if ( (elem = unmatched[i]) ) {
+            if ( !filter || filter( elem, context, xml ) ) {
+                newUnmatched.push( elem );
+                if ( mapped ) {
+                    map.push( i );
+                }
+            }
+        }
+    }
+
+    return newUnmatched;
+}
+
+function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
+    if ( postFilter && !postFilter[ expando ] ) {
+        postFilter = setMatcher( postFilter );
+    }
+    if ( postFinder && !postFinder[ expando ] ) {
+        postFinder = setMatcher( postFinder, postSelector );
+    }
+    return markFunction(function( seed, results, context, xml ) {
+        var temp, i, elem,
+            preMap = [],
+            postMap = [],
+            preexisting = results.length,
+
+            // Get initial elements from seed or context
+            elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ),
+
+            // Prefilter to get matcher input, preserving a map for seed-results synchronization
+            matcherIn = preFilter && ( seed || !selector ) ?
+                condense( elems, preMap, preFilter, context, xml ) :
+                elems,
+
+            matcherOut = matcher ?
+                // If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
+                postFinder || ( seed ? preFilter : preexisting || postFilter ) ?
+
+                    // ...intermediate processing is necessary
+                    [] :
+
+                    // ...otherwise use results directly
+                    results :
+                matcherIn;
+
+        // Find primary matches
+        if ( matcher ) {
+            matcher( matcherIn, matcherOut, context, xml );
+        }
+
+        // Apply postFilter
+        if ( postFilter ) {
+            temp = condense( matcherOut, postMap );
+            postFilter( temp, [], context, xml );
+
+            // Un-match failing elements by moving them back to matcherIn
+            i = temp.length;
+            while ( i-- ) {
+                if ( (elem = temp[i]) ) {
+                    matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem);
+                }
+            }
+        }
+
+        if ( seed ) {
+            if ( postFinder || preFilter ) {
+                if ( postFinder ) {
+                    // Get the final matcherOut by condensing this intermediate into postFinder contexts
+                    temp = [];
+                    i = matcherOut.length;
+                    while ( i-- ) {
+                        if ( (elem = matcherOut[i]) ) {
+                            // Restore matcherIn since elem is not yet a final match
+                            temp.push( (matcherIn[i] = elem) );
+                        }
+                    }
+                    postFinder( null, (matcherOut = []), temp, xml );
+                }
+
+                // Move matched elements from seed to results to keep them synchronized
+                i = matcherOut.length;
+                while ( i-- ) {
+                    if ( (elem = matcherOut[i]) &&
+                        (temp = postFinder ? indexOf.call( seed, elem ) : preMap[i]) > -1 ) {
+
+                        seed[temp] = !(results[temp] = elem);
+                    }
+                }
+            }
+
+        // Add elements to results, through postFinder if defined
+        } else {
+            matcherOut = condense(
+                matcherOut === results ?
+                    matcherOut.splice( preexisting, matcherOut.length ) :
+                    matcherOut
+            );
+            if ( postFinder ) {
+                postFinder( null, results, matcherOut, xml );
+            } else {
+                push.apply( results, matcherOut );
+            }
+        }
+    });
+}
+
+function matcherFromTokens( tokens ) {
+    var checkContext, matcher, j,
+        len = tokens.length,
+        leadingRelative = Expr.relative[ tokens[0].type ],
+        implicitRelative = leadingRelative || Expr.relative[" "],
+        i = leadingRelative ? 1 : 0,
+
+        // The foundational matcher ensures that elements are reachable from top-level context(s)
+        matchContext = addCombinator( function( elem ) {
+            return elem === checkContext;
+        }, implicitRelative, true ),
+        matchAnyContext = addCombinator( function( elem ) {
+            return indexOf.call( checkContext, elem ) > -1;
+        }, implicitRelative, true ),
+        matchers = [ function( elem, context, xml ) {
+            return ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
+                (checkContext = context).nodeType ?
+                    matchContext( elem, context, xml ) :
+                    matchAnyContext( elem, context, xml ) );
+        } ];
+
+    for ( ; i < len; i++ ) {
+        if ( (matcher = Expr.relative[ tokens[i].type ]) ) {
+            matchers = [ addCombinator(elementMatcher( matchers ), matcher) ];
+        } else {
+            matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches );
+
+            // Return special upon seeing a positional matcher
+            if ( matcher[ expando ] ) {
+                // Find the next relative operator (if any) for proper handling
+                j = ++i;
+                for ( ; j < len; j++ ) {
+                    if ( Expr.relative[ tokens[j].type ] ) {
+                        break;
+                    }
+                }
+                return setMatcher(
+                    i > 1 && elementMatcher( matchers ),
+                    i > 1 && toSelector( tokens.slice( 0, i - 1 ) ).replace( rtrim, "$1" ),
+                    matcher,
+                    i < j && matcherFromTokens( tokens.slice( i, j ) ),
+                    j < len && matcherFromTokens( (tokens = tokens.slice( j )) ),
+                    j < len && toSelector( tokens )
+                );
+            }
+            matchers.push( matcher );
+        }
+    }
+
+    return elementMatcher( matchers );
+}
+
+function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
+    // A counter to specify which element is currently being matched
+    var matcherCachedRuns = 0,
+        bySet = setMatchers.length > 0,
+        byElement = elementMatchers.length > 0,
+        superMatcher = function( seed, context, xml, results, expandContext ) {
+            var elem, j, matcher,
+                setMatched = [],
+                matchedCount = 0,
+                i = "0",
+                unmatched = seed && [],
+                outermost = expandContext != null,
+                contextBackup = outermostContext,
+                // We must always have either seed elements or context
+                elems = seed || byElement && Expr.find["TAG"]( "*", expandContext && context.parentNode || context ),
+                // Nested matchers should use non-integer dirruns
+                dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.E);
+
+            if ( outermost ) {
+                outermostContext = context !== document && context;
+                cachedruns = matcherCachedRuns;
+            }
+
+            // Add elements passing elementMatchers directly to results
+            for ( ; (elem = elems[i]) != null; i++ ) {
+                if ( byElement && elem ) {
+                    for ( j = 0; (matcher = elementMatchers[j]); j++ ) {
+                        if ( matcher( elem, context, xml ) ) {
+                            results.push( elem );
+                            break;
+                        }
+                    }
+                    if ( outermost ) {
+                        dirruns = dirrunsUnique;
+                        cachedruns = ++matcherCachedRuns;
+                    }
+                }
+
+                // Track unmatched elements for set filters
+                if ( bySet ) {
+                    // They will have gone through all possible matchers
+                    if ( (elem = !matcher && elem) ) {
+                        matchedCount--;
+                    }
+
+                    // Lengthen the array for every element, matched or not
+                    if ( seed ) {
+                        unmatched.push( elem );
+                    }
+                }
+            }
+
+            // Apply set filters to unmatched elements
+            // `i` starts as a string, so matchedCount would equal "00" if there are no elements
+            matchedCount += i;
+            if ( bySet && i !== matchedCount ) {
+                for ( j = 0; (matcher = setMatchers[j]); j++ ) {
+                    matcher( unmatched, setMatched, context, xml );
+                }
+
+                if ( seed ) {
+                    // Reintegrate element matches to eliminate the need for sorting
+                    if ( matchedCount > 0 ) {
+                        while ( i-- ) {
+                            if ( !(unmatched[i] || setMatched[i]) ) {
+                                setMatched[i] = pop.call( results );
+                            }
+                        }
+                    }
+
+                    // Discard index placeholder values to get only actual matches
+                    setMatched = condense( setMatched );
+                }
+
+                // Add matches to results
+                push.apply( results, setMatched );
+
+                // Seedless set matches succeeding multiple successful matchers stipulate sorting
+                if ( outermost && !seed && setMatched.length > 0 &&
+                    ( matchedCount + setMatchers.length ) > 1 ) {
+
+                    Sizzle.uniqueSort( results );
+                }
+            }
+
+            // Override manipulation of globals by nested matchers
+            if ( outermost ) {
+                dirruns = dirrunsUnique;
+                outermostContext = contextBackup;
+            }
+
+            return unmatched;
+        };
+
+    return bySet ?
+        markFunction( superMatcher ) :
+        superMatcher;
+}
+
+compile = Sizzle.compile = function( selector, group /* Internal Use Only */ ) {
+    var i,
+        setMatchers = [],
+        elementMatchers = [],
+        cached = compilerCache[ selector + " " ];
+
+    if ( !cached ) {
+        // Generate a function of recursive functions that can be used to check each element
+        if ( !group ) {
+            group = tokenize( selector );
+        }
+        i = group.length;
+        while ( i-- ) {
+            cached = matcherFromTokens( group[i] );
+            if ( cached[ expando ] ) {
+                setMatchers.push( cached );
+            } else {
+                elementMatchers.push( cached );
+            }
+        }
+
+        // Cache the compiled function
+        cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );
+    }
+    return cached;
+};
+
+function multipleContexts( selector, contexts, results ) {
+    var i = 0,
+        len = contexts.length;
+    for ( ; i < len; i++ ) {
+        Sizzle( selector, contexts[i], results );
+    }
+    return results;
+}
+
+function select( selector, context, results, seed ) {
+    var i, tokens, token, type, find,
+        match = tokenize( selector );
+
+    if ( !seed ) {
+        // Try to minimize operations if there is only one group
+        if ( match.length === 1 ) {
+
+            // Take a shortcut and set the context if the root selector is an ID
+            tokens = match[0] = match[0].slice( 0 );
+            if ( tokens.length > 2 && (token = tokens[0]).type === "ID" &&
+                    context.nodeType === 9 && !documentIsXML &&
+                    Expr.relative[ tokens[1].type ] ) {
+
+                context = Expr.find["ID"]( token.matches[0].replace( runescape, funescape ), context )[0];
+                if ( !context ) {
+                    return results;
+                }
+
+                selector = selector.slice( tokens.shift().value.length );
+            }
+
+            // Fetch a seed set for right-to-left matching
+            for ( i = matchExpr["needsContext"].test( selector ) ? -1 : tokens.length - 1; i >= 0; i-- ) {
+                token = tokens[i];
+
+                // Abort if we hit a combinator
+                if ( Expr.relative[ (type = token.type) ] ) {
+                    break;
+                }
+                if ( (find = Expr.find[ type ]) ) {
+                    // Search, expanding context for leading sibling combinators
+                    if ( (seed = find(
+                        token.matches[0].replace( runescape, funescape ),
+                        rsibling.test( tokens[0].type ) && context.parentNode || context
+                    )) ) {
+
+                        // If seed is empty or no tokens remain, we can return early
+                        tokens.splice( i, 1 );
+                        selector = seed.length && toSelector( tokens );
+                        if ( !selector ) {
+                            push.apply( results, slice.call( seed, 0 ) );
+                            return results;
+                        }
+
+                        break;
+                    }
+                }
+            }
+        }
+    }
+
+    // Compile and execute a filtering function
+    // Provide `match` to avoid retokenization if we modified the selector above
+    compile( selector, match )(
+        seed,
+        context,
+        documentIsXML,
+        results,
+        rsibling.test( selector )
+    );
+    return results;
+}
+
+// Deprecated
+Expr.pseudos["nth"] = Expr.pseudos["eq"];
+
+// Easy API for creating new setFilters
+function setFilters() {}
+Expr.filters = setFilters.prototype = Expr.pseudos;
+Expr.setFilters = new setFilters();
+
+// Initialize with the default document
+setDocument();
+
+// Override sizzle attribute retrieval
+Sizzle.attr = jQuery.attr;
+jQuery.find = Sizzle;
+jQuery.expr = Sizzle.selectors;
+jQuery.expr[":"] = jQuery.expr.pseudos;
+jQuery.unique = Sizzle.uniqueSort;
+jQuery.text = Sizzle.getText;
+jQuery.isXMLDoc = Sizzle.isXML;
+jQuery.contains = Sizzle.contains;
+
+
+})( window );
+var runtil = /Until$/,
+    rparentsprev = /^(?:parents|prev(?:Until|All))/,
+    isSimple = /^.[^:#\[\.,]*$/,
+    rneedsContext = jQuery.expr.match.needsContext,
+    // methods guaranteed to produce a unique set when starting from a unique set
+    guaranteedUnique = {
+        children: true,
+        contents: true,
+        next: true,
+        prev: true
+    };
+
+jQuery.fn.extend({
+    find: function( selector ) {
+        var i, ret, self;
+
+        if ( typeof selector !== "string" ) {
+            self = this;
+            return this.pushStack( jQuery( selector ).filter(function() {
+                for ( i = 0; i < self.length; i++ ) {
+                    if ( jQuery.contains( self[ i ], this ) ) {
+                        return true;
+                    }
+                }
+            }) );
+        }
+
+        ret = [];
+        for ( i = 0; i < this.length; i++ ) {
+            jQuery.find( selector, this[ i ], ret );
+        }
+
+        // Needed because $( selector, context ) becomes $( context ).find( selector )
+        ret = this.pushStack( jQuery.unique( ret ) );
+        ret.selector = ( this.selector ? this.selector + " " : "" ) + selector;
+        return ret;
+    },
+
+    has: function( target ) {
+        var i,
+            targets = jQuery( target, this ),
+            len = targets.length;
+
+        return this.filter(function() {
+            for ( i = 0; i < len; i++ ) {
+                if ( jQuery.contains( this, targets[i] ) ) {
+                    return true;
+                }
+            }
+        });
+    },
+
+    not: function( selector ) {
+        return this.pushStack( winnow(this, selector, false) );
+    },
+
+    filter: function( selector ) {
+        return this.pushStack( winnow(this, selector, true) );
+    },
+
+    is: function( selector ) {
+        return !!selector && (
+            typeof selector === "string" ?
+                // If this is a positional/relative selector, check membership in the returned set
+                // so $("p:first").is("p:last") won't return true for a doc with two "p".
+                rneedsContext.test( selector ) ?
+                    jQuery( selector, this.context ).index( this[0] ) >= 0 :
+                    jQuery.filter( selector, this ).length > 0 :
+                this.filter( selector ).length > 0 );
+    },
+
+    closest: function( selectors, context ) {
+        var cur,
+            i = 0,
+            l = this.length,
+            ret = [],
+            pos = rneedsContext.test( selectors ) || typeof selectors !== "string" ?
+                jQuery( selectors, context || this.context ) :
+                0;
+
+        for ( ; i < l; i++ ) {
+            cur = this[i];
+
+            while ( cur && cur.ownerDocument && cur !== context && cur.nodeType !== 11 ) {
+                if ( pos ? pos.index(cur) > -1 : jQuery.find.matchesSelector(cur, selectors) ) {
+                    ret.push( cur );
+                    break;
+                }
+                cur = cur.parentNode;
+            }
+        }
+
+        return this.pushStack( ret.length > 1 ? jQuery.unique( ret ) : ret );
+    },
+
+    // Determine the position of an element within
+    // the matched set of elements
+    index: function( elem ) {
+
+        // No argument, return index in parent
+        if ( !elem ) {
+            return ( this[0] && this[0].parentNode ) ? this.first().prevAll().length : -1;
+        }
+
+        // index in selector
+        if ( typeof elem === "string" ) {
+            return jQuery.inArray( this[0], jQuery( elem ) );
+        }
+
+        // Locate the position of the desired element
+        return jQuery.inArray(
+            // If it receives a jQuery object, the first element is used
+            elem.jquery ? elem[0] : elem, this );
+    },
+
+    add: function( selector, context ) {
+        var set = typeof selector === "string" ?
+                jQuery( selector, context ) :
+                jQuery.makeArray( selector && selector.nodeType ? [ selector ] : selector ),
+            all = jQuery.merge( this.get(), set );
+
+        return this.pushStack( jQuery.unique(all) );
+    },
+
+    addBack: function( selector ) {
+        return this.add( selector == null ?
+            this.prevObject : this.prevObject.filter(selector)
+        );
+    }
+});
+
+jQuery.fn.andSelf = jQuery.fn.addBack;
+
+function sibling( cur, dir ) {
+    do {
+        cur = cur[ dir ];
+    } while ( cur && cur.nodeType !== 1 );
+
+    return cur;
+}
+
+jQuery.each({
+    parent: function( elem ) {
+        var parent = elem.parentNode;
+        return parent && parent.nodeType !== 11 ? parent : null;
+    },
+    parents: function( elem ) {
+        return jQuery.dir( elem, "parentNode" );
+    },
+    parentsUntil: function( elem, i, until ) {
+        return jQuery.dir( elem, "parentNode", until );
+    },
+    next: function( elem ) {
+        return sibling( elem, "nextSibling" );
+    },
+    prev: function( elem ) {
+        return sibling( elem, "previousSibling" );
+    },
+    nextAll: function( elem ) {
+        return jQuery.dir( elem, "nextSibling" );
+    },
+    prevAll: function( elem ) {
+        return jQuery.dir( elem, "previousSibling" );
+    },
+    nextUntil: function( elem, i, until ) {
+        return jQuery.dir( elem, "nextSibling", until );
+    },
+    prevUntil: function( elem, i, until ) {
+        return jQuery.dir( elem, "previousSibling", until );
+    },
+    siblings: function( elem ) {
+        return jQuery.sibling( ( elem.parentNode || {} ).firstChild, elem );
+    },
+    children: function( elem ) {
+        return jQuery.sibling( elem.firstChild );
+    },
+    contents: function( elem ) {
+        return jQuery.nodeName( elem, "iframe" ) ?
+            elem.contentDocument || elem.contentWindow.document :
+            jQuery.merge( [], elem.childNodes );
+    }
+}, function( name, fn ) {
+    jQuery.fn[ name ] = function( until, selector ) {
+        var ret = jQuery.map( this, fn, until );
+
+        if ( !runtil.test( name ) ) {
+            selector = until;
+        }
+
+        if ( selector && typeof selector === "string" ) {
+            ret = jQuery.filter( selector, ret );
+        }
+
+        ret = this.length > 1 && !guaranteedUnique[ name ] ? jQuery.unique( ret ) : ret;
+
+        if ( this.length > 1 && rparentsprev.test( name ) ) {
+            ret = ret.reverse();
+        }
+
+        return this.pushStack( ret );
+    };
+});
+
+jQuery.extend({
+    filter: function( expr, elems, not ) {
+        if ( not ) {
+            expr = ":not(" + expr + ")";
+        }
+
+        return elems.length === 1 ?
+            jQuery.find.matchesSelector(elems[0], expr) ? [ elems[0] ] : [] :
+            jQuery.find.matches(expr, elems);
+    },
+
+    dir: function( elem, dir, until ) {
+        var matched = [],
+            cur = elem[ dir ];
+
+        while ( cur && cur.nodeType !== 9 && (until === undefined || cur.nodeType !== 1 || !jQuery( cur ).is( until )) ) {
+            if ( cur.nodeType === 1 ) {
+                matched.push( cur );
+            }
+            cur = cur[dir];
+        }
+        return matched;
+    },
+
+    sibling: function( n, elem ) {
+        var r = [];
+
+        for ( ; n; n = n.nextSibling ) {
+            if ( n.nodeType === 1 && n !== elem ) {
+                r.push( n );
+            }
+        }
+
+        return r;
+    }
+});
+
+// Implement the identical functionality for filter and not
+function winnow( elements, qualifier, keep ) {
+
+    // Can't pass null or undefined to indexOf in Firefox 4
+    // Set to 0 to skip string check
+    qualifier = qualifier || 0;
+
+    if ( jQuery.isFunction( qualifier ) ) {
+        return jQuery.grep(elements, function( elem, i ) {
+            var retVal = !!qualifier.call( elem, i, elem );
+            return retVal === keep;
+        });
+
+    } else if ( qualifier.nodeType ) {
+        return jQuery.grep(elements, function( elem ) {
+            return ( elem === qualifier ) === keep;
+        });
+
+    } else if ( typeof qualifier === "string" ) {
+        var filtered = jQuery.grep(elements, function( elem ) {
+            return elem.nodeType === 1;
+        });
+
+        if ( isSimple.test( qualifier ) ) {
+            return jQuery.filter(qualifier, filtered, !keep);
+        } else {
+            qualifier = jQuery.filter( qualifier, filtered );
+        }
+    }
+
+    return jQuery.grep(elements, function( elem ) {
+        return ( jQuery.inArray( elem, qualifier ) >= 0 ) === keep;
+    });
+}
+function createSafeFragment( document ) {
+    var list = nodeNames.split( "|" ),
+        safeFrag = document.createDocumentFragment();
+
+    if ( safeFrag.createElement ) {
+        while ( list.length ) {
+            safeFrag.createElement(
+                list.pop()
+            );
+        }
+    }
+    return safeFrag;
+}
+
+var nodeNames = "abbr|article|aside|audio|bdi|canvas|data|datalist|details|figcaption|figure|footer|" +
+        "header|hgroup|mark|meter|nav|output|progress|section|summary|time|video",
+    rinlinejQuery = / jQuery\d+="(?:null|\d+)"/g,
+    rnoshimcache = new RegExp("<(?:" + nodeNames + ")[\\s/>]", "i"),
+    rleadingWhitespace = /^\s+/,
+    rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:]+)[^>]*)\/>/gi,
+    rtagName = /<([\w:]+)/,
+    rtbody = /<tbody/i,
+    rhtml = /<|&#?\w+;/,
+    rnoInnerhtml = /<(?:script|style|link)/i,
+    manipulation_rcheckableType = /^(?:checkbox|radio)$/i,
+    // checked="checked" or checked
+    rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
+    rscriptType = /^$|\/(?:java|ecma)script/i,
+    rscriptTypeMasked = /^true\/(.*)/,
+    rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g,
+
+    // We have to close these tags to support XHTML (#13200)
+    wrapMap = {
+        option: [ 1, "<select multiple='multiple'>", "</select>" ],
+        legend: [ 1, "<fieldset>", "</fieldset>" ],
+        area: [ 1, "<map>", "</map>" ],
+        param: [ 1, "<object>", "</object>" ],
+        thead: [ 1, "<table>", "</table>" ],
+        tr: [ 2, "<table><tbody>", "</tbody></table>" ],
+        col: [ 2, "<table><tbody></tbody><colgroup>", "</colgroup></table>" ],
+        td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],
+
+        // IE6-8 can't serialize link, script, style, or any html5 (NoScope) tags,
+        // unless wrapped in a div with non-breaking characters in front of it.
+        _default: jQuery.support.htmlSerialize ? [ 0, "", "" ] : [ 1, "X<div>", "</div>"  ]
+    },
+    safeFragment = createSafeFragment( document ),
+    fragmentDiv = safeFragment.appendChild( document.createElement("div") );
+
+wrapMap.optgroup = wrapMap.option;
+wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
+wrapMap.th = wrapMap.td;
+
+jQuery.fn.extend({
+    text: function( value ) {
+        return jQuery.access( this, function( value ) {
+            return value === undefined ?
+                jQuery.text( this ) :
+                this.empty().append( ( this[0] && this[0].ownerDocument || document ).createTextNode( value ) );
+        }, null, value, arguments.length );
+    },
+
+    wrapAll: function( html ) {
+        if ( jQuery.isFunction( html ) ) {
+            return this.each(function(i) {
+                jQuery(this).wrapAll( html.call(this, i) );
+            });
+        }
+
+        if ( this[0] ) {
+            // The elements to wrap the target around
+            var wrap = jQuery( html, this[0].ownerDocument ).eq(0).clone(true);
+
+            if ( this[0].parentNode ) {
+                wrap.insertBefore( this[0] );
+            }
+
+            wrap.map(function() {
+                var elem = this;
+
+                while ( elem.firstChild && elem.firstChild.nodeType === 1 ) {
+                    elem = elem.firstChild;
+                }
+
+                return elem;
+            }).append( this );
+        }
+
+        return this;
+    },
+
+    wrapInner: function( html ) {
+        if ( jQuery.isFunction( html ) ) {
+            return this.each(function(i) {
+                jQuery(this).wrapInner( html.call(this, i) );
+            });
+        }
+
+        return this.each(function() {
+            var self = jQuery( this ),
+                contents = self.contents();
+
+            if ( contents.length ) {
+                contents.wrapAll( html );
+
+            } else {
+                self.append( html );
+            }
+        });
+    },
+
+    wrap: function( html ) {
+        var isFunction = jQuery.isFunction( html );
+
+        return this.each(function(i) {
+            jQuery( this ).wrapAll( isFunction ? html.call(this, i) : html );
+        });
+    },
+
+    unwrap: function() {
+        return this.parent().each(function() {
+            if ( !jQuery.nodeName( this, "body" ) ) {
+                jQuery( this ).replaceWith( this.childNodes );
+            }
+        }).end();
+    },
+
+    append: function() {
+        return this.domManip(arguments, true, function( elem ) {
+            if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
+                this.appendChild( elem );
+            }
+        });
+    },
+
+    prepend: function() {
+        return this.domManip(arguments, true, function( elem ) {
+            if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
+                this.insertBefore( elem, this.firstChild );
+            }
+        });
+    },
+
+    before: function() {
+        return this.domManip( arguments, false, function( elem ) {
+            if ( this.parentNode ) {
+                this.parentNode.insertBefore( elem, this );
+            }
+        });
+    },
+
+    after: function() {
+        return this.domManip( arguments, false, function( elem ) {
+            if ( this.parentNode ) {
+                this.parentNode.insertBefore( elem, this.nextSibling );
+            }
+        });
+    },
+
+    // keepData is for internal use only--do not document
+    remove: function( selector, keepData ) {
+        var elem,
+            i = 0;
+
+        for ( ; (elem = this[i]) != null; i++ ) {
+            if ( !selector || jQuery.filter( selector, [ elem ] ).length > 0 ) {
+                if ( !keepData && elem.nodeType === 1 ) {
+                    jQuery.cleanData( getAll( elem ) );
+                }
+
+                if ( elem.parentNode ) {
+                    if ( keepData && jQuery.contains( elem.ownerDocument, elem ) ) {
+                        setGlobalEval( getAll( elem, "script" ) );
+                    }
+                    elem.parentNode.removeChild( elem );
+                }
+            }
+        }
+
+        return this;
+    },
+
+    empty: function() {
+        var elem,
+            i = 0;
+
+        for ( ; (elem = this[i]) != null; i++ ) {
+            // Remove element nodes and prevent memory leaks
+            if ( elem.nodeType === 1 ) {
+                jQuery.cleanData( getAll( elem, false ) );
+            }
+
+            // Remove any remaining nodes
+            while ( elem.firstChild ) {
+                elem.removeChild( elem.firstChild );
+            }
+
+            // If this is a select, ensure that it displays empty (#12336)
+            // Support: IE<9
+            if ( elem.options && jQuery.nodeName( elem, "select" ) ) {
+                elem.options.length = 0;
+            }
+        }
+
+        return this;
+    },
+
+    clone: function( dataAndEvents, deepDataAndEvents ) {
+        dataAndEvents = dataAndEvents == null ? false : dataAndEvents;
+        deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;
+
+        return this.map( function () {
+            return jQuery.clone( this, dataAndEvents, deepDataAndEvents );
+        });
+    },
+
+    html: function( value ) {
+        return jQuery.access( this, function( value ) {
+            var elem = this[0] || {},
+                i = 0,
+                l = this.length;
+
+            if ( value === undefined ) {
+                return elem.nodeType === 1 ?
+                    elem.innerHTML.replace( rinlinejQuery, "" ) :
+                    undefined;
+            }
+
+            // See if we can take a shortcut and just use innerHTML
+            if ( typeof value === "string" && !rnoInnerhtml.test( value ) &&
+                ( jQuery.support.htmlSerialize || !rnoshimcache.test( value )  ) &&
+                ( jQuery.support.leadingWhitespace || !rleadingWhitespace.test( value ) ) &&
+                !wrapMap[ ( rtagName.exec( value ) || ["", ""] )[1].toLowerCase() ] ) {
+
+                value = value.replace( rxhtmlTag, "<$1></$2>" );
+
+                try {
+                    for (; i < l; i++ ) {
+                        // Remove element nodes and prevent memory leaks
+                        elem = this[i] || {};
+                        if ( elem.nodeType === 1 ) {
+                            jQuery.cleanData( getAll( elem, false ) );
+                            elem.innerHTML = value;
+                        }
+                    }
+
+                    elem = 0;
+
+                // If using innerHTML throws an exception, use the fallback method
+                } catch(e) {}
+            }
+
+            if ( elem ) {
+                this.empty().append( value );
+            }
+        }, null, value, arguments.length );
+    },
+
+    replaceWith: function( value ) {
+        var isFunc = jQuery.isFunction( value );
+
+        // Make sure that the elements are removed from the DOM before they are inserted
+        // this can help fix replacing a parent with child elements
+        if ( !isFunc && typeof value !== "string" ) {
+            value = jQuery( value ).not( this ).detach();
+        }
+
+        return this.domManip( [ value ], true, function( elem ) {
+            var next = this.nextSibling,
+                parent = this.parentNode;
+
+            if ( parent && this.nodeType === 1 || this.nodeType === 11 ) {
+
+                jQuery( this ).remove();
+
+                if ( next ) {
+                    next.parentNode.insertBefore( elem, next );
+                } else {
+                    parent.appendChild( elem );
+                }
+            }
+        });
+    },
+
+    detach: function( selector ) {
+        return this.remove( selector, true );
+    },
+
+    domManip: function( args, table, callback ) {
+
+        // Flatten any nested arrays
+        args = core_concat.apply( [], args );
+
+        var fragment, first, scripts, hasScripts, node, doc,
+            i = 0,
+            l = this.length,
+            set = this,
+            iNoClone = l - 1,
+            value = args[0],
+            isFunction = jQuery.isFunction( value );
+
+        // We can't cloneNode fragments that contain checked, in WebKit
+        if ( isFunction || !( l <= 1 || typeof value !== "string" || jQuery.support.checkClone || !rchecked.test( value ) ) ) {
+            return this.each(function( index ) {
+                var self = set.eq( index );
+                if ( isFunction ) {
+                    args[0] = value.call( this, index, table ? self.html() : undefined );
+                }
+                self.domManip( args, table, callback );
+            });
+        }
+
+        if ( l ) {
+            fragment = jQuery.buildFragment( args, this[ 0 ].ownerDocument, false, this );
+            first = fragment.firstChild;
+
+            if ( fragment.childNodes.length === 1 ) {
+                fragment = first;
+            }
+
+            if ( first ) {
+                table = table && jQuery.nodeName( first, "tr" );
+                scripts = jQuery.map( getAll( fragment, "script" ), disableScript );
+                hasScripts = scripts.length;
+
+                // Use the original fragment for the last item instead of the first because it can end up
+                // being emptied incorrectly in certain situations (#8070).
+                for ( ; i < l; i++ ) {
+                    node = fragment;
+
+                    if ( i !== iNoClone ) {
+                        node = jQuery.clone( node, true, true );
+
+                        // Keep references to cloned scripts for later restoration
+                        if ( hasScripts ) {
+                            jQuery.merge( scripts, getAll( node, "script" ) );
+                        }
+                    }
+
+                    callback.call(
+                        table && jQuery.nodeName( this[i], "table" ) ?
+                            findOrAppend( this[i], "tbody" ) :
+                            this[i],
+                        node,
+                        i
+                    );
+                }
+
+                if ( hasScripts ) {
+                    doc = scripts[ scripts.length - 1 ].ownerDocument;
+
+                    // Reenable scripts
+                    jQuery.map( scripts, restoreScript );
+
+                    // Evaluate executable scripts on first document insertion
+                    for ( i = 0; i < hasScripts; i++ ) {
+                        node = scripts[ i ];
+                        if ( rscriptType.test( node.type || "" ) &&
+                            !jQuery._data( node, "globalEval" ) && jQuery.contains( doc, node ) ) {
+
+                            if ( node.src ) {
+                                // Hope ajax is available...
+                                jQuery.ajax({
+                                    url: node.src,
+                                    type: "GET",
+                                    dataType: "script",
+                                    async: false,
+                                    global: false,
+                                    "throws": true
+                                });
+                            } else {
+                                jQuery.globalEval( ( node.text || node.textContent || node.innerHTML || "" ).replace( rcleanScript, "" ) );
+                            }
+                        }
+                    }
+                }
+
+                // Fix #11809: Avoid leaking memory
+                fragment = first = null;
+            }
+        }
+
+        return this;
+    }
+});
+
+function findOrAppend( elem, tag ) {
+    return elem.getElementsByTagName( tag )[0] || elem.appendChild( elem.ownerDocument.createElement( tag ) );
+}
+
+// Replace/restore the type attribute of script elements for safe DOM manipulation
+function disableScript( elem ) {
+    var attr = elem.getAttributeNode("type");
+    elem.type = ( attr && attr.specified ) + "/" + elem.type;
+    return elem;
+}
+function restoreScript( elem ) {
+    var match = rscriptTypeMasked.exec( elem.type );
+    if ( match ) {
+        elem.type = match[1];
+    } else {
+        elem.removeAttribute("type");
+    }
+    return elem;
+}
+
+// Mark scripts as having already been evaluated
+function setGlobalEval( elems, refElements ) {
+    var elem,
+        i = 0;
+    for ( ; (elem = elems[i]) != null; i++ ) {
+        jQuery._data( elem, "globalEval", !refElements || jQuery._data( refElements[i], "globalEval" ) );
+    }
+}
+
+function cloneCopyEvent( src, dest ) {
+
+    if ( dest.nodeType !== 1 || !jQuery.hasData( src ) ) {
+        return;
+    }
+
+    var type, i, l,
+        oldData = jQuery._data( src ),
+        curData = jQuery._data( dest, oldData ),
+        events = oldData.events;
+
+    if ( events ) {
+        delete curData.handle;
+        curData.events = {};
+
+        for ( type in events ) {
+            for ( i = 0, l = events[ type ].length; i < l; i++ ) {
+                jQuery.event.add( dest, type, events[ type ][ i ] );
+            }
+        }
+    }
+
+    // make the cloned public data object a copy from the original
+    if ( curData.data ) {
+        curData.data = jQuery.extend( {}, curData.data );
+    }
+}
+
+function fixCloneNodeIssues( src, dest ) {
+    var nodeName, data, e;
+
+    // We do not need to do anything for non-Elements
+    if ( dest.nodeType !== 1 ) {
+        return;
+    }
+
+    nodeName = dest.nodeName.toLowerCase();
+
+    // IE6-8 copies events bound via attachEvent when using cloneNode.
+    if ( !jQuery.support.noCloneEvent && dest[ jQuery.expando ] ) {
+        data = jQuery._data( dest );
+
+        for ( e in data.events ) {
+            jQuery.removeEvent( dest, e, data.handle );
+        }
+
+        // Event data gets referenced instead of copied if the expando gets copied too
+        dest.removeAttribute( jQuery.expando );
+    }
+
+    // IE blanks contents when cloning scripts, and tries to evaluate newly-set text
+    if ( nodeName === "script" && dest.text !== src.text ) {
+        disableScript( dest ).text = src.text;
+        restoreScript( dest );
+
+    // IE6-10 improperly clones children of object elements using classid.
+    // IE10 throws NoModificationAllowedError if parent is null, #12132.
+    } else if ( nodeName === "object" ) {
+        if ( dest.parentNode ) {
+            dest.outerHTML = src.outerHTML;
+        }
+
+        // This path appears unavoidable for IE9. When cloning an object
+        // element in IE9, the outerHTML strategy above is not sufficient.
+        // If the src has innerHTML and the destination does not,
+        // copy the src.innerHTML into the dest.innerHTML. #10324
+        if ( jQuery.support.html5Clone && ( src.innerHTML && !jQuery.trim(dest.innerHTML) ) ) {
+            dest.innerHTML = src.innerHTML;
+        }
+
+    } else if ( nodeName === "input" && manipulation_rcheckableType.test( src.type ) ) {
+        // IE6-8 fails to persist the checked state of a cloned checkbox
+        // or radio button. Worse, IE6-7 fail to give the cloned element
+        // a checked appearance if the defaultChecked value isn't also set
+
+        dest.defaultChecked = dest.checked = src.checked;
+
+        // IE6-7 get confused and end up setting the value of a cloned
+        // checkbox/radio button to an empty string instead of "on"
+        if ( dest.value !== src.value ) {
+            dest.value = src.value;
+        }
+
+    // IE6-8 fails to return the selected option to the default selected
+    // state when cloning options
+    } else if ( nodeName === "option" ) {
+        dest.defaultSelected = dest.selected = src.defaultSelected;
+
+    // IE6-8 fails to set the defaultValue to the correct value when
+    // cloning other types of input fields
+    } else if ( nodeName === "input" || nodeName === "textarea" ) {
+        dest.defaultValue = src.defaultValue;
+    }
+}
+
+jQuery.each({
+    appendTo: "append",
+    prependTo: "prepend",
+    insertBefore: "before",
+    insertAfter: "after",
+    replaceAll: "replaceWith"
+}, function( name, original ) {
+    jQuery.fn[ name ] = function( selector ) {
+        var elems,
+            i = 0,
+            ret = [],
+            insert = jQuery( selector ),
+            last = insert.length - 1;
+
+        for ( ; i <= last; i++ ) {
+            elems = i === last ? this : this.clone(true);
+            jQuery( insert[i] )[ original ]( elems );
+
+            // Modern browsers can apply jQuery collections as arrays, but oldIE needs a .get()
+            core_push.apply( ret, elems.get() );
+        }
+
+        return this.pushStack( ret );
+    };
+});
+
+function getAll( context, tag ) {
+    var elems, elem,
+        i = 0,
+        found = typeof context.getElementsByTagName !== "undefined" ? context.getElementsByTagName( tag || "*" ) :
+            typeof context.querySelectorAll !== "undefined" ? context.querySelectorAll( tag || "*" ) :
+            undefined;
+
+    if ( !found ) {
+        for ( found = [], elems = context.childNodes || context; (elem = elems[i]) != null; i++ ) {
+            if ( !tag || jQuery.nodeName( elem, tag ) ) {
+                found.push( elem );
+            } else {
+                jQuery.merge( found, getAll( elem, tag ) );
+            }
+        }
+    }
+
+    return tag === undefined || tag && jQuery.nodeName( context, tag ) ?
+        jQuery.merge( [ context ], found ) :
+        found;
+}
+
+// Used in buildFragment, fixes the defaultChecked property
+function fixDefaultChecked( elem ) {
+    if ( manipulation_rcheckableType.test( elem.type ) ) {
+        elem.defaultChecked = elem.checked;
+    }
+}
+
+jQuery.extend({
+    clone: function( elem, dataAndEvents, deepDataAndEvents ) {
+        var destElements, srcElements, node, i, clone,
+            inPage = jQuery.contains( elem.ownerDocument, elem );
+
+        if ( jQuery.support.html5Clone || jQuery.isXMLDoc(elem) || !rnoshimcache.test( "<" + elem.nodeName + ">" ) ) {
+            clone = elem.cloneNode( true );
+
+        // IE<=8 does not properly clone detached, unknown element nodes
+        } else {
+            fragmentDiv.innerHTML = elem.outerHTML;
+            fragmentDiv.removeChild( clone = fragmentDiv.firstChild );
+        }
+
+        if ( (!jQuery.support.noCloneEvent || !jQuery.support.noCloneChecked) &&
+                (elem.nodeType === 1 || elem.nodeType === 11) && !jQuery.isXMLDoc(elem) ) {
+
+            // We eschew Sizzle here for performance reasons: http://jsperf.com/getall-vs-sizzle/2
+            destElements = getAll( clone );
+            srcElements = getAll( elem );
+
+            // Fix all IE cloning issues
+            for ( i = 0; (node = srcElements[i]) != null; ++i ) {
+                // Ensure that the destination node is not null; Fixes #9587
+                if ( destElements[i] ) {
+                    fixCloneNodeIssues( node, destElements[i] );
+                }
+            }
+        }
+
+        // Copy the events from the original to the clone
+        if ( dataAndEvents ) {
+            if ( deepDataAndEvents ) {
+                srcElements = srcElements || getAll( elem );
+                destElements = destElements || getAll( clone );
+
+                for ( i = 0; (node = srcElements[i]) != null; i++ ) {
+                    cloneCopyEvent( node, destElements[i] );
+                }
+            } else {
+                cloneCopyEvent( elem, clone );
+            }
+        }
+
+        // Preserve script evaluation history
+        destElements = getAll( clone, "script" );
+        if ( destElements.length > 0 ) {
+            setGlobalEval( destElements, !inPage && getAll( elem, "script" ) );
+        }
+
+        destElements = srcElements = node = null;
+
+        // Return the cloned set
+        return clone;
+    },
+
+    buildFragment: function( elems, context, scripts, selection ) {
+        var contains, elem, tag, tmp, wrap, tbody, j,
+            l = elems.length,
+
+            // Ensure a safe fragment
+            safe = createSafeFragment( context ),
+
+            nodes = [],
+            i = 0;
+
+        for ( ; i < l; i++ ) {
+            elem = elems[ i ];
+
+            if ( elem || elem === 0 ) {
+
+                // Add nodes directly
+                if ( jQuery.type( elem ) === "object" ) {
+                    jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );
+
+                // Convert non-html into a text node
+                } else if ( !rhtml.test( elem ) ) {
+                    nodes.push( context.createTextNode( elem ) );
+
+                // Convert html into DOM nodes
+                } else {
+                    tmp = tmp || safe.appendChild( context.createElement("div") );
+
+                    // Deserialize a standard representation
+                    tag = ( rtagName.exec( elem ) || ["", ""] )[1].toLowerCase();
+                    wrap = wrapMap[ tag ] || wrapMap._default;
+
+                    tmp.innerHTML = wrap[1] + elem.replace( rxhtmlTag, "<$1></$2>" ) + wrap[2];
+
+                    // Descend through wrappers to the right content
+                    j = wrap[0];
+                    while ( j-- ) {
+                        tmp = tmp.lastChild;
+                    }
+
+                    // Manually add leading whitespace removed by IE
+                    if ( !jQuery.support.leadingWhitespace && rleadingWhitespace.test( elem ) ) {
+                        nodes.push( context.createTextNode( rleadingWhitespace.exec( elem )[0] ) );
+                    }
+
+                    // Remove IE's autoinserted <tbody> from table fragments
+                    if ( !jQuery.support.tbody ) {
+
+                        // String was a <table>, *may* have spurious <tbody>
+                        elem = tag === "table" && !rtbody.test( elem ) ?
+                            tmp.firstChild :
+
+                            // String was a bare <thead> or <tfoot>
+                            wrap[1] === "<table>" && !rtbody.test( elem ) ?
+                                tmp :
+                                0;
+
+                        j = elem && elem.childNodes.length;
+                        while ( j-- ) {
+                            if ( jQuery.nodeName( (tbody = elem.childNodes[j]), "tbody" ) && !tbody.childNodes.length ) {
+                                elem.removeChild( tbody );
+                            }
+                        }
+                    }
+
+                    jQuery.merge( nodes, tmp.childNodes );
+
+                    // Fix #12392 for WebKit and IE > 9
+                    tmp.textContent = "";
+
+                    // Fix #12392 for oldIE
+                    while ( tmp.firstChild ) {
+                        tmp.removeChild( tmp.firstChild );
+                    }
+
+                    // Remember the top-level container for proper cleanup
+                    tmp = safe.lastChild;
+                }
+            }
+        }
+
+        // Fix #11356: Clear elements from fragment
+        if ( tmp ) {
+            safe.removeChild( tmp );
+        }
+
+        // Reset defaultChecked for any radios and checkboxes
+        // about to be appended to the DOM in IE 6/7 (#8060)
+        if ( !jQuery.support.appendChecked ) {
+            jQuery.grep( getAll( nodes, "input" ), fixDefaultChecked );
+        }
+
+        i = 0;
+        while ( (elem = nodes[ i++ ]) ) {
+
+            // #4087 - If origin and destination elements are the same, and this is
+            // that element, do not do anything
+            if ( selection && jQuery.inArray( elem, selection ) !== -1 ) {
+                continue;
+            }
+
+            contains = jQuery.contains( elem.ownerDocument, elem );
+
+            // Append to fragment
+            tmp = getAll( safe.appendChild( elem ), "script" );
+
+            // Preserve script evaluation history
+            if ( contains ) {
+                setGlobalEval( tmp );
+            }
+
+            // Capture executables
+            if ( scripts ) {
+                j = 0;
+                while ( (elem = tmp[ j++ ]) ) {
+                    if ( rscriptType.test( elem.type || "" ) ) {
+                        scripts.push( elem );
+                    }
+                }
+            }
+        }
+
+        tmp = null;
+
+        return safe;
+    },
+
+    cleanData: function( elems, /* internal */ acceptData ) {
+        var data, id, elem, type,
+            i = 0,
+            internalKey = jQuery.expando,
+            cache = jQuery.cache,
+            deleteExpando = jQuery.support.deleteExpando,
+            special = jQuery.event.special;
+
+        for ( ; (elem = elems[i]) != null; i++ ) {
+
+            if ( acceptData || jQuery.acceptData( elem ) ) {
+
+                id = elem[ internalKey ];
+                data = id && cache[ id ];
+
+                if ( data ) {
+                    if ( data.events ) {
+                        for ( type in data.events ) {
+                            if ( special[ type ] ) {
+                                jQuery.event.remove( elem, type );
+
+                            // This is a shortcut to avoid jQuery.event.remove's overhead
+                            } else {
+                                jQuery.removeEvent( elem, type, data.handle );
+                            }
+                        }
+                    }
+
+                    // Remove cache only if it was not already removed by jQuery.event.remove
+                    if ( cache[ id ] ) {
+
+                        delete cache[ id ];
+
+                        // IE does not allow us to delete expando properties from nodes,
+                        // nor does it have a removeAttribute function on Document nodes;
+                        // we must handle all of these cases
+                        if ( deleteExpando ) {
+                            delete elem[ internalKey ];
+
+                        } else if ( typeof elem.removeAttribute !== "undefined" ) {
+                            elem.removeAttribute( internalKey );
+
+                        } else {
+                            elem[ internalKey ] = null;
+                        }
+
+                        core_deletedIds.push( id );
+                    }
+                }
+            }
+        }
+    }
+});
+var curCSS, getStyles, iframe,
+    ralpha = /alpha\([^)]*\)/i,
+    ropacity = /opacity\s*=\s*([^)]*)/,
+    rposition = /^(top|right|bottom|left)$/,
+    // swappable if display is none or starts with table except "table", "table-cell", or "table-caption"
+    // see here for display values: https://developer.mozilla.org/en-US/docs/CSS/display
+    rdisplayswap = /^(none|table(?!-c[ea]).+)/,
+    rmargin = /^margin/,
+    rnumsplit = new RegExp( "^(" + core_pnum + ")(.*)$", "i" ),
+    rnumnonpx = new RegExp( "^(" + core_pnum + ")(?!px)[a-z%]+$", "i" ),
+    rrelNum = new RegExp( "^([+-])=(" + core_pnum + ")", "i" ),
+    elemdisplay = { BODY: "block" },
+
+    cssShow = { position: "absolute", visibility: "hidden", display: "block" },
+    cssNormalTransform = {
+        letterSpacing: 0,
+        fontWeight: 400
+    },
+
+    cssExpand = [ "Top", "Right", "Bottom", "Left" ],
+    cssPrefixes = [ "Webkit", "O", "Moz", "ms" ];
+
+// return a css property mapped to a potentially vendor prefixed property
+function vendorPropName( style, name ) {
+
+    // shortcut for names that are not vendor prefixed
+    if ( name in style ) {
+        return name;
+    }
+
+    // check for vendor prefixed names
+    var capName = name.charAt(0).toUpperCase() + name.slice(1),
+        origName = name,
+        i = cssPrefixes.length;
+
+    while ( i-- ) {
+        name = cssPrefixes[ i ] + capName;
+        if ( name in style ) {
+            return name;
+        }
+    }
+
+    return origName;
+}
+
+function isHidden( elem, el ) {
+    // isHidden might be called from jQuery#filter function;
+    // in that case, element will be second argument
+    elem = el || elem;
+    return jQuery.css( elem, "display" ) === "none" || !jQuery.contains( elem.ownerDocument, elem );
+}
+
+function showHide( elements, show ) {
+    var elem,
+        values = [],
+        index = 0,
+        length = elements.length;
+
+    for ( ; index < length; index++ ) {
+        elem = elements[ index ];
+        if ( !elem.style ) {
+            continue;
+        }
+        values[ index ] = jQuery._data( elem, "olddisplay" );
+        if ( show ) {
+            // Reset the inline display of this element to learn if it is
+            // being hidden by cascaded rules or not
+            if ( !values[ index ] && elem.style.display === "none" ) {
+                elem.style.display = "";
+            }
+
+            // Set elements which have been overridden with display: none
+            // in a stylesheet to whatever the default browser style is
+            // for such an element
+            if ( elem.style.display === "" && isHidden( elem ) ) {
+                values[ index ] = jQuery._data( elem, "olddisplay", css_defaultDisplay(elem.nodeName) );
+            }
+        } else if ( !values[ index ] && !isHidden( elem ) ) {
+            jQuery._data( elem, "olddisplay", jQuery.css( elem, "display" ) );
+        }
+    }
+
+    // Set the display of most of the elements in a second loop
+    // to avoid the constant reflow
+    for ( index = 0; index < length; index++ ) {
+        elem = elements[ index ];
+        if ( !elem.style ) {
+            continue;
+        }
+        if ( !show || elem.style.display === "none" || elem.style.display === "" ) {
+            elem.style.display = show ? values[ index ] || "" : "none";
+        }
+    }
+
+    return elements;
+}
+
+jQuery.fn.extend({
+    css: function( name, value ) {
+        return jQuery.access( this, function( elem, name, value ) {
+            var styles, len,
+                map = {},
+                i = 0;
+
+            if ( jQuery.isArray( name ) ) {
+                styles = getStyles( elem );
+                len = name.length;
+
+                for ( ; i < len; i++ ) {
+                    map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );
+                }
+
+                return map;
+            }
+
+            return value !== undefined ?
+                jQuery.style( elem, name, value ) :
+                jQuery.css( elem, name );
+        }, name, value, arguments.length > 1 );
+    },
+    show: function() {
+        return showHide( this, true );
+    },
+    hide: function() {
+        return showHide( this );
+    },
+    toggle: function( state ) {
+        var bool = typeof state === "boolean";
+
+        return this.each(function() {
+            if ( bool ? state : isHidden( this ) ) {
+                jQuery( this ).show();
+            } else {
+                jQuery( this ).hide();
+            }
+        });
+    }
+});
+
+jQuery.extend({
+    // Add in style property hooks for overriding the default
+    // behavior of getting and setting a style property
+    cssHooks: {
+        opacity: {
+            get: function( elem, computed ) {
+                if ( computed ) {
+                    // We should always get a number back from opacity
+                    var ret = curCSS( elem, "opacity" );
+                    return ret === "" ? "1" : ret;
+                }
+            }
+        }
+    },
+
+    // Exclude the following css properties to add px
+    cssNumber: {
+        "columnCount": true,
+        "fillOpacity": true,
+        "fontWeight": true,
+        "lineHeight": true,
+        "opacity": true,
+        "orphans": true,
+        "widows": true,
+        "zIndex": true,
+        "zoom": true
+    },
+
+    // Add in properties whose names you wish to fix before
+    // setting or getting the value
+    cssProps: {
+        // normalize float css property
+        "float": jQuery.support.cssFloat ? "cssFloat" : "styleFloat"
+    },
+
+    // Get and set the style property on a DOM Node
+    style: function( elem, name, value, extra ) {
+        // Don't set styles on text and comment nodes
+        if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {
+            return;
+        }
+
+        // Make sure that we're working with the right name
+        var ret, type, hooks,
+            origName = jQuery.camelCase( name ),
+            style = elem.style;
+
+        name = jQuery.cssProps[ origName ] || ( jQuery.cssProps[ origName ] = vendorPropName( style, origName ) );
+
+        // gets hook for the prefixed version
+        // followed by the unprefixed version
+        hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
+
+        // Check if we're setting a value
+        if ( value !== undefined ) {
+            type = typeof value;
+
+            // convert relative number strings (+= or -=) to relative numbers. #7345
+            if ( type === "string" && (ret = rrelNum.exec( value )) ) {
+                value = ( ret[1] + 1 ) * ret[2] + parseFloat( jQuery.css( elem, name ) );
+                // Fixes bug #9237
+                type = "number";
+            }
+
+            // Make sure that NaN and null values aren't set. See: #7116
+            if ( value == null || type === "number" && isNaN( value ) ) {
+                return;
+            }
+
+            // If a number was passed in, add 'px' to the (except for certain CSS properties)
+            if ( type === "number" && !jQuery.cssNumber[ origName ] ) {
+                value += "px";
+            }
+
+            // Fixes #8908, it can be done more correctly by specifing setters in cssHooks,
+            // but it would mean to define eight (for every problematic property) identical functions
+            if ( !jQuery.support.clearCloneStyle && value === "" && name.indexOf("background") === 0 ) {
+                style[ name ] = "inherit";
+            }
+
+            // If a hook was provided, use that value, otherwise just set the specified value
+            if ( !hooks || !("set" in hooks) || (value = hooks.set( elem, value, extra )) !== undefined ) {
+
+                // Wrapped to prevent IE from throwing errors when 'invalid' values are provided
+                // Fixes bug #5509
+                try {
+                    style[ name ] = value;
+                } catch(e) {}
+            }
+
+        } else {
+            // If a hook was provided get the non-computed value from there
+            if ( hooks && "get" in hooks && (ret = hooks.get( elem, false, extra )) !== undefined ) {
+                return ret;
+            }
+
+            // Otherwise just get the value from the style object
+            return style[ name ];
+        }
+    },
+
+    css: function( elem, name, extra, styles ) {
+        var val, num, hooks,
+            origName = jQuery.camelCase( name );
+
+        // Make sure that we're working with the right name
+        name = jQuery.cssProps[ origName ] || ( jQuery.cssProps[ origName ] = vendorPropName( elem.style, origName ) );
+
+        // gets hook for the prefixed version
+        // followed by the unprefixed version
+        hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
+
+        // If a hook was provided get the computed value from there
+        if ( hooks && "get" in hooks ) {
+            val = hooks.get( elem, true, extra );
+        }
+
+        // Otherwise, if a way to get the computed value exists, use that
+        if ( val === undefined ) {
+            val = curCSS( elem, name, styles );
+        }
+
+        //convert "normal" to computed value
+        if ( val === "normal" && name in cssNormalTransform ) {
+            val = cssNormalTransform[ name ];
+        }
+
+        // Return, converting to number if forced or a qualifier was provided and val looks numeric
+        if ( extra ) {
+            num = parseFloat( val );
+            return extra === true || jQuery.isNumeric( num ) ? num || 0 : val;
+        }
+        return val;
+    },
+
+    // A method for quickly swapping in/out CSS properties to get correct calculations
+    swap: function( elem, options, callback, args ) {
+        var ret, name,
+            old = {};
+
+        // Remember the old values, and insert the new ones
+        for ( name in options ) {
+            old[ name ] = elem.style[ name ];
+            elem.style[ name ] = options[ name ];
+        }
+
+        ret = callback.apply( elem, args || [] );
+
+        // Revert the old values
+        for ( name in options ) {
+            elem.style[ name ] = old[ name ];
+        }
+
+        return ret;
+    }
+});
+
+// NOTE: we've included the "window" in window.getComputedStyle
+// because jsdom on node.js will break without it.
+if ( window.getComputedStyle ) {
+    getStyles = function( elem ) {
+        return window.getComputedStyle( elem, null );
+    };
+
+    curCSS = function( elem, name, _computed ) {
+        var width, minWidth, maxWidth,
+            computed = _computed || getStyles( elem ),
+
+            // getPropertyValue is only needed for .css('filter') in IE9, see #12537
+            ret = computed ? computed.getPropertyValue( name ) || computed[ name ] : undefined,
+            style = elem.style;
+
+        if ( computed ) {
+
+            if ( ret === "" && !jQuery.contains( elem.ownerDocument, elem ) ) {
+                ret = jQuery.style( elem, name );
+            }
+
+            // A tribute to the "awesome hack by Dean Edwards"
+            // Chrome < 17 and Safari 5.0 uses "computed value" instead of "used value" for margin-right
+            // Safari 5.1.7 (at least) returns percentage for a larger set of values, but width seems to be reliably pixels
+            // this is against the CSSOM draft spec: http://dev.w3.org/csswg/cssom/#resolved-values
+            if ( rnumnonpx.test( ret ) && rmargin.test( name ) ) {
+
+                // Remember the original values
+                width = style.width;
+                minWidth = style.minWidth;
+                maxWidth = style.maxWidth;
+
+                // Put in the new values to get a computed value out
+                style.minWidth = style.maxWidth = style.width = ret;
+                ret = computed.width;
+
+                // Revert the changed values
+                style.width = width;
+                style.minWidth = minWidth;
+                style.maxWidth = maxWidth;
+            }
+        }
+
+        return ret;
+    };
+} else if ( document.documentElement.currentStyle ) {
+    getStyles = function( elem ) {
+        return elem.currentStyle;
+    };
+
+    curCSS = function( elem, name, _computed ) {
+        var left, rs, rsLeft,
+            computed = _computed || getStyles( elem ),
+            ret = computed ? computed[ name ] : undefined,
+            style = elem.style;
+
+        // Avoid setting ret to empty string here
+        // so we don't default to auto
+        if ( ret == null && style && style[ name ] ) {
+            ret = style[ name ];
+        }
+
+        // From the awesome hack by Dean Edwards
+        // http://erik.eae.net/archives/2007/07/27/18.54.15/#comment-102291
+
+        // If we're not dealing with a regular pixel number
+        // but a number that has a weird ending, we need to convert it to pixels
+        // but not position css attributes, as those are proportional to the parent element instead
+        // and we can't measure the parent instead because it might trigger a "stacking dolls" problem
+        if ( rnumnonpx.test( ret ) && !rposition.test( name ) ) {
+
+            // Remember the original values
+            left = style.left;
+            rs = elem.runtimeStyle;
+            rsLeft = rs && rs.left;
+
+            // Put in the new values to get a computed value out
+            if ( rsLeft ) {
+                rs.left = elem.currentStyle.left;
+            }
+            style.left = name === "fontSize" ? "1em" : ret;
+            ret = style.pixelLeft + "px";
+
+            // Revert the changed values
+            style.left = left;
+            if ( rsLeft ) {
+                rs.left = rsLeft;
+            }
+        }
+
+        return ret === "" ? "auto" : ret;
+    };
+}
+
+function setPositiveNumber( elem, value, subtract ) {
+    var matches = rnumsplit.exec( value );
+    return matches ?
+        // Guard against undefined "subtract", e.g., when used as in cssHooks
+        Math.max( 0, matches[ 1 ] - ( subtract || 0 ) ) + ( matches[ 2 ] || "px" ) :
+        value;
+}
+
+function augmentWidthOrHeight( elem, name, extra, isBorderBox, styles ) {
+    var i = extra === ( isBorderBox ? "border" : "content" ) ?
+        // If we already have the right measurement, avoid augmentation
+        4 :
+        // Otherwise initialize for horizontal or vertical properties
+        name === "width" ? 1 : 0,
+
+        val = 0;
+
+    for ( ; i < 4; i += 2 ) {
+        // both box models exclude margin, so add it if we want it
+        if ( extra === "margin" ) {
+            val += jQuery.css( elem, extra + cssExpand[ i ], true, styles );
+        }
+
+        if ( isBorderBox ) {
+            // border-box includes padding, so remove it if we want content
+            if ( extra === "content" ) {
+                val -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
+            }
+
+            // at this point, extra isn't border nor margin, so remove border
+            if ( extra !== "margin" ) {
+                val -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
+            }
+        } else {
+            // at this point, extra isn't content, so add padding
+            val += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
+
+            // at this point, extra isn't content nor padding, so add border
+            if ( extra !== "padding" ) {
+                val += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
+            }
+        }
+    }
+
+    return val;
+}
+
+function getWidthOrHeight( elem, name, extra ) {
+
+    // Start with offset property, which is equivalent to the border-box value
+    var valueIsBorderBox = true,
+        val = name === "width" ? elem.offsetWidth : elem.offsetHeight,
+        styles = getStyles( elem ),
+        isBorderBox = jQuery.support.boxSizing && jQuery.css( elem, "boxSizing", false, styles ) === "border-box";
+
+    // some non-html elements return undefined for offsetWidth, so check for null/undefined
+    // svg - https://bugzilla.mozilla.org/show_bug.cgi?id=649285
+    // MathML - https://bugzilla.mozilla.org/show_bug.cgi?id=491668
+    if ( val <= 0 || val == null ) {
+        // Fall back to computed then uncomputed css if necessary
+        val = curCSS( elem, name, styles );
+        if ( val < 0 || val == null ) {
+            val = elem.style[ name ];
+        }
+
+        // Computed unit is not pixels. Stop here and return.
+        if ( rnumnonpx.test(val) ) {
+            return val;
+        }
+
+        // we need the check for style in case a browser which returns unreliable values
+        // for getComputedStyle silently falls back to the reliable elem.style
+        valueIsBorderBox = isBorderBox && ( jQuery.support.boxSizingReliable || val === elem.style[ name ] );
+
+        // Normalize "", auto, and prepare for extra
+        val = parseFloat( val ) || 0;
+    }
+
+    // use the active box-sizing model to add/subtract irrelevant styles
+    return ( val +
+        augmentWidthOrHeight(
+            elem,
+            name,
+            extra || ( isBorderBox ? "border" : "content" ),
+            valueIsBorderBox,
+            styles
+        )
+    ) + "px";
+}
+
+// Try to determine the default display value of an element
+function css_defaultDisplay( nodeName ) {
+    var doc = document,
+        display = elemdisplay[ nodeName ];
+
+    if ( !display ) {
+        display = actualDisplay( nodeName, doc );
+
+        // If the simple way fails, read from inside an iframe
+        if ( display === "none" || !display ) {
+            // Use the already-created iframe if possible
+            iframe = ( iframe ||
+                jQuery("<iframe frameborder='0' width='0' height='0'/>")
+                .css( "cssText", "display:block !important" )
+            ).appendTo( doc.documentElement );
+
+            // Always write a new HTML skeleton so Webkit and Firefox don't choke on reuse
+            doc = ( iframe[0].contentWindow || iframe[0].contentDocument ).document;
+            doc.write("<!doctype html><html><body>");
+            doc.close();
+
+            display = actualDisplay( nodeName, doc );
+            iframe.detach();
+        }
+
+        // Store the correct default display
+        elemdisplay[ nodeName ] = display;
+    }
+
+    return display;
+}
+
+// Called ONLY from within css_defaultDisplay
+function actualDisplay( name, doc ) {
+    var elem = jQuery( doc.createElement( name ) ).appendTo( doc.body ),
+        display = jQuery.css( elem[0], "display" );
+    elem.remove();
+    return display;
+}
+
+jQuery.each([ "height", "width" ], function( i, name ) {
+    jQuery.cssHooks[ name ] = {
+        get: function( elem, computed, extra ) {
+            if ( computed ) {
+                // certain elements can have dimension info if we invisibly show them
+                // however, it must have a current display style that would benefit from this
+                return elem.offsetWidth === 0 && rdisplayswap.test( jQuery.css( elem, "display" ) ) ?
+                    jQuery.swap( elem, cssShow, function() {
+                        return getWidthOrHeight( elem, name, extra );
+                    }) :
+                    getWidthOrHeight( elem, name, extra );
+            }
+        },
+
+        set: function( elem, value, extra ) {
+            var styles = extra && getStyles( elem );
+            return setPositiveNumber( elem, value, extra ?
+                augmentWidthOrHeight(
+                    elem,
+                    name,
+                    extra,
+                    jQuery.support.boxSizing && jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
+                    styles
+                ) : 0
+            );
+        }
+    };
+});
+
+if ( !jQuery.support.opacity ) {
+    jQuery.cssHooks.opacity = {
+        get: function( elem, computed ) {
+            // IE uses filters for opacity
+            return ropacity.test( (computed && elem.currentStyle ? elem.currentStyle.filter : elem.style.filter) || "" ) ?
+                ( 0.01 * parseFloat( RegExp.$1 ) ) + "" :
+                computed ? "1" : "";
+        },
+
+        set: function( elem, value ) {
+            var style = elem.style,
+                currentStyle = elem.currentStyle,
+                opacity = jQuery.isNumeric( value ) ? "alpha(opacity=" + value * 100 + ")" : "",
+                filter = currentStyle && currentStyle.filter || style.filter || "";
+
+            // IE has trouble with opacity if it does not have layout
+            // Force it by setting the zoom level
+            style.zoom = 1;
+
+            // if setting opacity to 1, and no other filters exist - attempt to remove filter attribute #6652
+            // if value === "", then remove inline opacity #12685
+            if ( ( value >= 1 || value === "" ) &&
+                    jQuery.trim( filter.replace( ralpha, "" ) ) === "" &&
+                    style.removeAttribute ) {
+
+                // Setting style.filter to null, "" & " " still leave "filter:" in the cssText
+                // if "filter:" is present at all, clearType is disabled, we want to avoid this
+                // style.removeAttribute is IE Only, but so apparently is this code path...
+                style.removeAttribute( "filter" );
+
+                // if there is no filter style applied in a css rule or unset inline opacity, we are done
+                if ( value === "" || currentStyle && !currentStyle.filter ) {
+                    return;
+                }
+            }
+
+            // otherwise, set new filter values
+            style.filter = ralpha.test( filter ) ?
+                filter.replace( ralpha, opacity ) :
+                filter + " " + opacity;
+        }
+    };
+}
+
+// These hooks cannot be added until DOM ready because the support test
+// for it is not run until after DOM ready
+jQuery(function() {
+    if ( !jQuery.support.reliableMarginRight ) {
+        jQuery.cssHooks.marginRight = {
+            get: function( elem, computed ) {
+                if ( computed ) {
+                    // WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right
+                    // Work around by temporarily setting element display to inline-block
+                    return jQuery.swap( elem, { "display": "inline-block" },
+                        curCSS, [ elem, "marginRight" ] );
+                }
+            }
+        };
+    }
+
+    // Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
+    // getComputedStyle returns percent when specified for top/left/bottom/right
+    // rather than make the css module depend on the offset module, we just check for it here
+    if ( !jQuery.support.pixelPosition && jQuery.fn.position ) {
+        jQuery.each( [ "top", "left" ], function( i, prop ) {
+            jQuery.cssHooks[ prop ] = {
+                get: function( elem, computed ) {
+                    if ( computed ) {
+                        computed = curCSS( elem, prop );
+                        // if curCSS returns percentage, fallback to offset
+                        return rnumnonpx.test( computed ) ?
+                            jQuery( elem ).position()[ prop ] + "px" :
+                            computed;
+                    }
+                }
+            };
+        });
+    }
+
+});
+
+if ( jQuery.expr && jQuery.expr.filters ) {
+    jQuery.expr.filters.hidden = function( elem ) {
+        return ( elem.offsetWidth === 0 && elem.offsetHeight === 0 ) || (!jQuery.support.reliableHiddenOffsets && ((elem.style && elem.style.display) || jQuery.css( elem, "display" )) === "none");
+    };
+
+    jQuery.expr.filters.visible = function( elem ) {
+        return !jQuery.expr.filters.hidden( elem );
+    };
+}
+
+// These hooks are used by animate to expand properties
+jQuery.each({
+    margin: "",
+    padding: "",
+    border: "Width"
+}, function( prefix, suffix ) {
+    jQuery.cssHooks[ prefix + suffix ] = {
+        expand: function( value ) {
+            var i = 0,
+                expanded = {},
+
+                // assumes a single number if not a string
+                parts = typeof value === "string" ? value.split(" ") : [ value ];
+
+            for ( ; i < 4; i++ ) {
+                expanded[ prefix + cssExpand[ i ] + suffix ] =
+                    parts[ i ] || parts[ i - 2 ] || parts[ 0 ];
+            }
+
+            return expanded;
+        }
+    };
+
+    if ( !rmargin.test( prefix ) ) {
+        jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber;
+    }
+});
+var r20 = /%20/g,
+    rbracket = /\[\]$/,
+    rCRLF = /\r?\n/g,
+    rsubmitterTypes = /^(?:submit|button|image|reset)$/i,
+    rsubmittable = /^(?:input|select|textarea|keygen)/i;
+
+jQuery.fn.extend({
+    serialize: function() {
+        return jQuery.param( this.serializeArray() );
+    },
+    serializeArray: function() {
+        return this.map(function(){
+            // Can add propHook for "elements" to filter or add form elements
+            var elements = jQuery.prop( this, "elements" );
+            return elements ? jQuery.makeArray( elements ) : this;
+        })
+        .filter(function(){
+            var type = this.type;
+            // Use .is(":disabled") so that fieldset[disabled] works
+            return this.name && !jQuery( this ).is( ":disabled" ) &&
+                rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) &&
+                ( this.checked || !manipulation_rcheckableType.test( type ) );
+        })
+        .map(function( i, elem ){
+            var val = jQuery( this ).val();
+
+            return val == null ?
+                null :
+                jQuery.isArray( val ) ?
+                    jQuery.map( val, function( val ){
+                        return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
+                    }) :
+                    { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
+        }).get();
+    }
+});
+
+//Serialize an array of form elements or a set of
+//key/values into a query string
+jQuery.param = function( a, traditional ) {
+    var prefix,
+        s = [],
+        add = function( key, value ) {
+            // If value is a function, invoke it and return its value
+            value = jQuery.isFunction( value ) ? value() : ( value == null ? "" : value );
+            s[ s.length ] = encodeURIComponent( key ) + "=" + encodeURIComponent( value );
+        };
+
+    // Set traditional to true for jQuery <= 1.3.2 behavior.
+    if ( traditional === undefined ) {
+        traditional = jQuery.ajaxSettings && jQuery.ajaxSettings.traditional;
+    }
+
+    // If an array was passed in, assume that it is an array of form elements.
+    if ( jQuery.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {
+        // Serialize the form elements
+        jQuery.each( a, function() {
+            add( this.name, this.value );
+        });
+
+    } else {
+        // If traditional, encode the "old" way (the way 1.3.2 or older
+        // did it), otherwise encode params recursively.
+        for ( prefix in a ) {
+            buildParams( prefix, a[ prefix ], traditional, add );
+        }
+    }
+
+    // Return the resulting serialization
+    return s.join( "&" ).replace( r20, "+" );
+};
+
+function buildParams( prefix, obj, traditional, add ) {
+    var name;
+
+    if ( jQuery.isArray( obj ) ) {
+        // Serialize array item.
+        jQuery.each( obj, function( i, v ) {
+            if ( traditional || rbracket.test( prefix ) ) {
+                // Treat each array item as a scalar.
+                add( prefix, v );
+
+            } else {
+                // Item is non-scalar (array or object), encode its numeric index.
+                buildParams( prefix + "[" + ( typeof v === "object" ? i : "" ) + "]", v, traditional, add );
+            }
+        });
+
+    } else if ( !traditional && jQuery.type( obj ) === "object" ) {
+        // Serialize object item.
+        for ( name in obj ) {
+            buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add );
+        }
+
+    } else {
+        // Serialize scalar item.
+        add( prefix, obj );
+    }
+}
+var
+    // Document location
+    ajaxLocParts,
+    ajaxLocation,
+    
+    ajax_nonce = jQuery.now(),
+
+    ajax_rquery = /\?/,
+    rhash = /#.*$/,
+    rts = /([?&])_=[^&]*/,
+    rheaders = /^(.*?):[ \t]*([^\r\n]*)\r?$/mg, // IE leaves an \r character at EOL
+    // #7653, #8125, #8152: local protocol detection
+    rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
+    rnoContent = /^(?:GET|HEAD)$/,
+    rprotocol = /^\/\//,
+    rurl = /^([\w.+-]+:)(?:\/\/([^\/?#:]*)(?::(\d+)|)|)/,
+
+    // Keep a copy of the old load method
+    _load = jQuery.fn.load,
+
+    /* Prefilters
+     * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)
+     * 2) These are called:
+     *    - BEFORE asking for a transport
+     *    - AFTER param serialization (s.data is a string if s.processData is true)
+     * 3) key is the dataType
+     * 4) the catchall symbol "*" can be used
+     * 5) execution will start with transport dataType and THEN continue down to "*" if needed
+     */
+    prefilters = {},
+
+    /* Transports bindings
+     * 1) key is the dataType
+     * 2) the catchall symbol "*" can be used
+     * 3) selection will start with transport dataType and THEN go to "*" if needed
+     */
+    transports = {},
+
+    // Avoid comment-prolog char sequence (#10098); must appease lint and evade compression
+    allTypes = "*/".concat("*");
+
+// #8138, IE may throw an exception when accessing
+// a field from window.location if document.domain has been set
+try {
+    ajaxLocation = location.href;
+} catch( e ) {
+    // Use the href attribute of an A element
+    // since IE will modify it given document.location
+    ajaxLocation = document.createElement( "a" );
+    ajaxLocation.href = "";
+    ajaxLocation = ajaxLocation.href;
+}
+
+// Segment location into parts
+ajaxLocParts = rurl.exec( ajaxLocation.toLowerCase() ) || [];
+
+// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport
+function addToPrefiltersOrTransports( structure ) {
+
+    // dataTypeExpression is optional and defaults to "*"
+    return function( dataTypeExpression, func ) {
+
+        if ( typeof dataTypeExpression !== "string" ) {
+            func = dataTypeExpression;
+            dataTypeExpression = "*";
+        }
+
+        var dataType,
+            i = 0,
+            dataTypes = dataTypeExpression.toLowerCase().match( core_rnotwhite ) || [];
+
+        if ( jQuery.isFunction( func ) ) {
+            // For each dataType in the dataTypeExpression
+            while ( (dataType = dataTypes[i++]) ) {
+                // Prepend if requested
+                if ( dataType[0] === "+" ) {
+                    dataType = dataType.slice( 1 ) || "*";
+                    (structure[ dataType ] = structure[ dataType ] || []).unshift( func );
+
+                // Otherwise append
+                } else {
+                    (structure[ dataType ] = structure[ dataType ] || []).push( func );
+                }
+            }
+        }
+    };
+}
+
+// Base inspection function for prefilters and transports
+function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) {
+
+    var inspected = {},
+        seekingTransport = ( structure === transports );
+
+    function inspect( dataType ) {
+        var selected;
+        inspected[ dataType ] = true;
+        jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) {
+            var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR );
+            if( typeof dataTypeOrTransport === "string" && !seekingTransport && !inspected[ dataTypeOrTransport ] ) {
+                options.dataTypes.unshift( dataTypeOrTransport );
+                inspect( dataTypeOrTransport );
+                return false;
+            } else if ( seekingTransport ) {
+                return !( selected = dataTypeOrTransport );
+            }
+        });
+        return selected;
+    }
+
+    return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" );
+}
+
+// A special extend for ajax options
+// that takes "flat" options (not to be deep extended)
+// Fixes #9887
+function ajaxExtend( target, src ) {
+    var key, deep,
+        flatOptions = jQuery.ajaxSettings.flatOptions || {};
+
+    for ( key in src ) {
+        if ( src[ key ] !== undefined ) {
+            ( flatOptions[ key ] ? target : ( deep || (deep = {}) ) )[ key ] = src[ key ];
+        }
+    }
+    if ( deep ) {
+        jQuery.extend( true, target, deep );
+    }
+
+    return target;
+}
+
+jQuery.fn.load = function( url, params, callback ) {
+    if ( typeof url !== "string" && _load ) {
+        return _load.apply( this, arguments );
+    }
+
+    var selector, type, response,
+        self = this,
+        off = url.indexOf(" ");
+
+    if ( off >= 0 ) {
+        selector = url.slice( off, url.length );
+        url = url.slice( 0, off );
+    }
+
+    // If it's a function
+    if ( jQuery.isFunction( params ) ) {
+
+        // We assume that it's the callback
+        callback = params;
+        params = undefined;
+
+    // Otherwise, build a param string
+    } else if ( params && typeof params === "object" ) {
+        type = "POST";
+    }
+
+    // If we have elements to modify, make the request
+    if ( self.length > 0 ) {
+        jQuery.ajax({
+            url: url,
+
+            // if "type" variable is undefined, then "GET" method will be used
+            type: type,
+            dataType: "html",
+            data: params
+        }).done(function( responseText ) {
+
+            // Save response for use in complete callback
+            response = arguments;
+
+            self.html( selector ?
+
+                // If a selector was specified, locate the right elements in a dummy div
+                // Exclude scripts to avoid IE 'Permission Denied' errors
+                jQuery("<div>").append( jQuery.parseHTML( responseText ) ).find( selector ) :
+
+                // Otherwise use the full result
+                responseText );
+
+        }).complete( callback && function( jqXHR, status ) {
+            self.each( callback, response || [ jqXHR.responseText, status, jqXHR ] );
+        });
+    }
+
+    return this;
+};
+
+// Attach a bunch of functions for handling common AJAX events
+jQuery.each( [ "ajaxStart", "ajaxStop", "ajaxComplete", "ajaxError", "ajaxSuccess", "ajaxSend" ], function( i, type ){
+    jQuery.fn[ type ] = function( fn ){
+        return this.on( type, fn );
+    };
+});
+
+jQuery.each( [ "get", "post" ], function( i, method ) {
+    jQuery[ method ] = function( url, data, callback, type ) {
+        // shift arguments if data argument was omitted
+        if ( jQuery.isFunction( data ) ) {
+            type = type || callback;
+            callback = data;
+            data = undefined;
+        }
+
+        return jQuery.ajax({
+            url: url,
+            type: method,
+            dataType: type,
+            data: data,
+            success: callback
+        });
+    };
+});
+
+jQuery.extend({
+
+    // Counter for holding the number of active queries
+    active: 0,
+
+    // Last-Modified header cache for next request
+    lastModified: {},
+    etag: {},
+
+    ajaxSettings: {
+        url: ajaxLocation,
+        type: "GET",
+        isLocal: rlocalProtocol.test( ajaxLocParts[ 1 ] ),
+        global: true,
+        processData: true,
+        async: true,
+        contentType: "application/x-www-form-urlencoded; charset=UTF-8",
+        /*
+        timeout: 0,
+        data: null,
+        dataType: null,
+        username: null,
+        password: null,
+        cache: null,
+        throws: false,
+        traditional: false,
+        headers: {},
+        */
+
+        accepts: {
+            "*": allTypes,
+            text: "text/plain",
+            html: "text/html",
+            xml: "application/xml, text/xml",
+            json: "application/json, text/javascript"
+        },
+
+        contents: {
+            xml: /xml/,
+            html: /html/,
+            json: /json/
+        },
+
+        responseFields: {
+            xml: "responseXML",
+            text: "responseText"
+        },
+
+        // Data converters
+        // Keys separate source (or catchall "*") and destination types with a single space
+        converters: {
+
+            // Convert anything to text
+            "* text": window.String,
+
+            // Text to html (true = no transformation)
+            "text html": true,
+
+            // Evaluate text as a json expression
+            "text json": jQuery.parseJSON,
+
+            // Parse text as xml
+            "text xml": jQuery.parseXML
+        },
+
+        // For options that shouldn't be deep extended:
+        // you can add your own custom options here if
+        // and when you create one that shouldn't be
+        // deep extended (see ajaxExtend)
+        flatOptions: {
+            url: true,
+            context: true
+        }
+    },
+
+    // Creates a full fledged settings object into target
+    // with both ajaxSettings and settings fields.
+    // If target is omitted, writes into ajaxSettings.
+    ajaxSetup: function( target, settings ) {
+        return settings ?
+
+            // Building a settings object
+            ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) :
+
+            // Extending ajaxSettings
+            ajaxExtend( jQuery.ajaxSettings, target );
+    },
+
+    ajaxPrefilter: addToPrefiltersOrTransports( prefilters ),
+    ajaxTransport: addToPrefiltersOrTransports( transports ),
+
+    // Main method
+    ajax: function( url, options ) {
+
+        // If url is an object, simulate pre-1.5 signature
+        if ( typeof url === "object" ) {
+            options = url;
+            url = undefined;
+        }
+
+        // Force options to be an object
+        options = options || {};
+
+        var transport,
+            // URL without anti-cache param
+            cacheURL,
+            // Response headers
+            responseHeadersString,
+            responseHeaders,
+            // timeout handle
+            timeoutTimer,
+            // Cross-domain detection vars
+            parts,
+            // To know if global events are to be dispatched
+            fireGlobals,
+            // Loop variable
+            i,
+            // Create the final options object
+            s = jQuery.ajaxSetup( {}, options ),
+            // Callbacks context
+            callbackContext = s.context || s,
+            // Context for global events is callbackContext if it is a DOM node or jQuery collection
+            globalEventContext = s.context && ( callbackContext.nodeType || callbackContext.jquery ) ?
+                jQuery( callbackContext ) :
+                jQuery.event,
+            // Deferreds
+            deferred = jQuery.Deferred(),
+            completeDeferred = jQuery.Callbacks("once memory"),
+            // Status-dependent callbacks
+            statusCode = s.statusCode || {},
+            // Headers (they are sent all at once)
+            requestHeaders = {},
+            requestHeadersNames = {},
+            // The jqXHR state
+            state = 0,
+            // Default abort message
+            strAbort = "canceled",
+            // Fake xhr
+            jqXHR = {
+                readyState: 0,
+
+                // Builds headers hashtable if needed
+                getResponseHeader: function( key ) {
+                    var match;
+                    if ( state === 2 ) {
+                        if ( !responseHeaders ) {
+                            responseHeaders = {};
+                            while ( (match = rheaders.exec( responseHeadersString )) ) {
+                                responseHeaders[ match[1].toLowerCase() ] = match[ 2 ];
+                            }
+                        }
+                        match = responseHeaders[ key.toLowerCase() ];
+                    }
+                    return match == null ? null : match;
+                },
+
+                // Raw string
+                getAllResponseHeaders: function() {
+                    return state === 2 ? responseHeadersString : null;
+                },
+
+                // Caches the header
+                setRequestHeader: function( name, value ) {
+                    var lname = name.toLowerCase();
+                    if ( !state ) {
+                        name = requestHeadersNames[ lname ] = requestHeadersNames[ lname ] || name;
+                        requestHeaders[ name ] = value;
+                    }
+                    return this;
+                },
+
+                // Overrides response content-type header
+                overrideMimeType: function( type ) {
+                    if ( !state ) {
+                        s.mimeType = type;
+                    }
+                    return this;
+                },
+
+                // Status-dependent callbacks
+                statusCode: function( map ) {
+                    var code;
+                    if ( map ) {
+                        if ( state < 2 ) {
+                            for ( code in map ) {
+                                // Lazy-add the new callback in a way that preserves old ones
+                                statusCode[ code ] = [ statusCode[ code ], map[ code ] ];
+                            }
+                        } else {
+                            // Execute the appropriate callbacks
+                            jqXHR.always( map[ jqXHR.status ] );
+                        }
+                    }
+                    return this;
+                },
+
+                // Cancel the request
+                abort: function( statusText ) {
+                    var finalText = statusText || strAbort;
+                    if ( transport ) {
+                        transport.abort( finalText );
+                    }
+                    done( 0, finalText );
+                    return this;
+                }
+            };
+
+        // Attach deferreds
+        deferred.promise( jqXHR ).complete = completeDeferred.add;
+        jqXHR.success = jqXHR.done;
+        jqXHR.error = jqXHR.fail;
+
+        // Remove hash character (#7531: and string promotion)
+        // Add protocol if not provided (#5866: IE7 issue with protocol-less urls)
+        // Handle falsy url in the settings object (#10093: consistency with old signature)
+        // We also use the url parameter if available
+        s.url = ( ( url || s.url || ajaxLocation ) + "" ).replace( rhash, "" ).replace( rprotocol, ajaxLocParts[ 1 ] + "//" );
+
+        // Alias method option to type as per ticket #12004
+        s.type = options.method || options.type || s.method || s.type;
+
+        // Extract dataTypes list
+        s.dataTypes = jQuery.trim( s.dataType || "*" ).toLowerCase().match( core_rnotwhite ) || [""];
+
+        // A cross-domain request is in order when we have a protocol:host:port mismatch
+        if ( s.crossDomain == null ) {
+            parts = rurl.exec( s.url.toLowerCase() );
+            s.crossDomain = !!( parts &&
+                ( parts[ 1 ] !== ajaxLocParts[ 1 ] || parts[ 2 ] !== ajaxLocParts[ 2 ] ||
+                    ( parts[ 3 ] || ( parts[ 1 ] === "http:" ? 80 : 443 ) ) !=
+                        ( ajaxLocParts[ 3 ] || ( ajaxLocParts[ 1 ] === "http:" ? 80 : 443 ) ) )
+            );
+        }
+
+        // Convert data if not already a string
+        if ( s.data && s.processData && typeof s.data !== "string" ) {
+            s.data = jQuery.param( s.data, s.traditional );
+        }
+
+        // Apply prefilters
+        inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );
+
+        // If request was aborted inside a prefilter, stop there
+        if ( state === 2 ) {
+            return jqXHR;
+        }
+
+        // We can fire global events as of now if asked to
+        fireGlobals = s.global;
+
+        // Watch for a new set of requests
+        if ( fireGlobals && jQuery.active++ === 0 ) {
+            jQuery.event.trigger("ajaxStart");
+        }
+
+        // Uppercase the type
+        s.type = s.type.toUpperCase();
+
+        // Determine if request has content
+        s.hasContent = !rnoContent.test( s.type );
+
+        // Save the URL in case we're toying with the If-Modified-Since
+        // and/or If-None-Match header later on
+        cacheURL = s.url;
+
+        // More options handling for requests with no content
+        if ( !s.hasContent ) {
+
+            // If data is available, append data to url
+            if ( s.data ) {
+                cacheURL = ( s.url += ( ajax_rquery.test( cacheURL ) ? "&" : "?" ) + s.data );
+                // #9682: remove data so that it's not used in an eventual retry
+                delete s.data;
+            }
+
+            // Add anti-cache in url if needed
+            if ( s.cache === false ) {
+                s.url = rts.test( cacheURL ) ?
+
+                    // If there is already a '_' parameter, set its value
+                    cacheURL.replace( rts, "$1_=" + ajax_nonce++ ) :
+
+                    // Otherwise add one to the end
+                    cacheURL + ( ajax_rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ajax_nonce++;
+            }
+        }
+
+        // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
+        if ( s.ifModified ) {
+            if ( jQuery.lastModified[ cacheURL ] ) {
+                jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] );
+            }
+            if ( jQuery.etag[ cacheURL ] ) {
+                jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] );
+            }
+        }
+
+        // Set the correct header, if data is being sent
+        if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {
+            jqXHR.setRequestHeader( "Content-Type", s.contentType );
+        }
+
+        // Set the Accepts header for the server, depending on the dataType
+        jqXHR.setRequestHeader(
+            "Accept",
+            s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[0] ] ?
+                s.accepts[ s.dataTypes[0] ] + ( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :
+                s.accepts[ "*" ]
+        );
+
+        // Check for headers option
+        for ( i in s.headers ) {
+            jqXHR.setRequestHeader( i, s.headers[ i ] );
+        }
+
+        // Allow custom headers/mimetypes and early abort
+        if ( s.beforeSend && ( s.beforeSend.call( callbackContext, jqXHR, s ) === false || state === 2 ) ) {
+            // Abort if not done already and return
+            return jqXHR.abort();
+        }
+
+        // aborting is no longer a cancellation
+        strAbort = "abort";
+
+        // Install callbacks on deferreds
+        for ( i in { success: 1, error: 1, complete: 1 } ) {
+            jqXHR[ i ]( s[ i ] );
+        }
+
+        // Get transport
+        transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );
+
+        // If no transport, we auto-abort
+        if ( !transport ) {
+            done( -1, "No Transport" );
+        } else {
+            jqXHR.readyState = 1;
+
+            // Send global event
+            if ( fireGlobals ) {
+                globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
+            }
+            // Timeout
+            if ( s.async && s.timeout > 0 ) {
+                timeoutTimer = setTimeout(function() {
+                    jqXHR.abort("timeout");
+                }, s.timeout );
+            }
+
+            try {
+                state = 1;
+                transport.send( requestHeaders, done );
+            } catch ( e ) {
+                // Propagate exception as error if not done
+                if ( state < 2 ) {
+                    done( -1, e );
+                // Simply rethrow otherwise
+                } else {
+                    throw e;
+                }
+            }
+        }
+
+        // Callback for when everything is done
+        function done( status, nativeStatusText, responses, headers ) {
+            var isSuccess, success, error, response, modified,
+                statusText = nativeStatusText;
+
+            // Called once
+            if ( state === 2 ) {
+                return;
+            }
+
+            // State is "done" now
+            state = 2;
+
+            // Clear timeout if it exists
+            if ( timeoutTimer ) {
+                clearTimeout( timeoutTimer );
+            }
+
+            // Dereference transport for early garbage collection
+            // (no matter how long the jqXHR object will be used)
+            transport = undefined;
+
+            // Cache response headers
+            responseHeadersString = headers || "";
+
+            // Set readyState
+            jqXHR.readyState = status > 0 ? 4 : 0;
+
+            // Get response data
+            if ( responses ) {
+                response = ajaxHandleResponses( s, jqXHR, responses );
+            }
+
+            // If successful, handle type chaining
+            if ( status >= 200 && status < 300 || status === 304 ) {
+
+                // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
+                if ( s.ifModified ) {
+                    modified = jqXHR.getResponseHeader("Last-Modified");
+                    if ( modified ) {
+                        jQuery.lastModified[ cacheURL ] = modified;
+                    }
+                    modified = jqXHR.getResponseHeader("etag");
+                    if ( modified ) {
+                        jQuery.etag[ cacheURL ] = modified;
+                    }
+                }
+
+                // If not modified
+                if ( status === 304 ) {
+                    isSuccess = true;
+                    statusText = "notmodified";
+
+                // If we have data
+                } else {
+                    isSuccess = ajaxConvert( s, response );
+                    statusText = isSuccess.state;
+                    success = isSuccess.data;
+                    error = isSuccess.error;
+                    isSuccess = !error;
+                }
+            } else {
+                // We extract error from statusText
+                // then normalize statusText and status for non-aborts
+                error = statusText;
+                if ( status || !statusText ) {
+                    statusText = "error";
+                    if ( status < 0 ) {
+                        status = 0;
+                    }
+                }
+            }
+
+            // Set data for the fake xhr object
+            jqXHR.status = status;
+            jqXHR.statusText = ( nativeStatusText || statusText ) + "";
+
+            // Success/Error
+            if ( isSuccess ) {
+                deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );
+            } else {
+                deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );
+            }
+
+            // Status-dependent callbacks
+            jqXHR.statusCode( statusCode );
+            statusCode = undefined;
+
+            if ( fireGlobals ) {
+                globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError",
+                    [ jqXHR, s, isSuccess ? success : error ] );
+            }
+
+            // Complete
+            completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );
+
+            if ( fireGlobals ) {
+                globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );
+                // Handle the global AJAX counter
+                if ( !( --jQuery.active ) ) {
+                    jQuery.event.trigger("ajaxStop");
+                }
+            }
+        }
+
+        return jqXHR;
+    },
+
+    getScript: function( url, callback ) {
+        return jQuery.get( url, undefined, callback, "script" );
+    },
+
+    getJSON: function( url, data, callback ) {
+        return jQuery.get( url, data, callback, "json" );
+    }
+});
+
+/* Handles responses to an ajax request:
+ * - sets all responseXXX fields accordingly
+ * - finds the right dataType (mediates between content-type and expected dataType)
+ * - returns the corresponding response
+ */
+function ajaxHandleResponses( s, jqXHR, responses ) {
+
+    var ct, type, finalDataType, firstDataType,
+        contents = s.contents,
+        dataTypes = s.dataTypes,
+        responseFields = s.responseFields;
+
+    // Fill responseXXX fields
+    for ( type in responseFields ) {
+        if ( type in responses ) {
+            jqXHR[ responseFields[type] ] = responses[ type ];
+        }
+    }
+
+    // Remove auto dataType and get content-type in the process
+    while( dataTypes[ 0 ] === "*" ) {
+        dataTypes.shift();
+        if ( ct === undefined ) {
+            ct = s.mimeType || jqXHR.getResponseHeader("Content-Type");
+        }
+    }
+
+    // Check if we're dealing with a known content-type
+    if ( ct ) {
+        for ( type in contents ) {
+            if ( contents[ type ] && contents[ type ].test( ct ) ) {
+                dataTypes.unshift( type );
+                break;
+            }
+        }
+    }
+
+    // Check to see if we have a response for the expected dataType
+    if ( dataTypes[ 0 ] in responses ) {
+        finalDataType = dataTypes[ 0 ];
+    } else {
+        // Try convertible dataTypes
+        for ( type in responses ) {
+            if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[0] ] ) {
+                finalDataType = type;
+                break;
+            }
+            if ( !firstDataType ) {
+                firstDataType = type;
+            }
+        }
+        // Or just use first one
+        finalDataType = finalDataType || firstDataType;
+    }
+
+    // If we found a dataType
+    // We add the dataType to the list if needed
+    // and return the corresponding response
+    if ( finalDataType ) {
+        if ( finalDataType !== dataTypes[ 0 ] ) {
+            dataTypes.unshift( finalDataType );
+        }
+        return responses[ finalDataType ];
+    }
+}
+
+// Chain conversions given the request and the original response
+function ajaxConvert( s, response ) {
+
+    var conv, conv2, current, tmp,
+        converters = {},
+        i = 0,
+        // Work with a copy of dataTypes in case we need to modify it for conversion
+        dataTypes = s.dataTypes.slice(),
+        prev = dataTypes[ 0 ];
+
+    // Apply the dataFilter if provided
+    if ( s.dataFilter ) {
+        response = s.dataFilter( response, s.dataType );
+    }
+
+    // Create converters map with lowercased keys
+    if ( dataTypes[ 1 ] ) {
+        for ( conv in s.converters ) {
+            converters[ conv.toLowerCase() ] = s.converters[ conv ];
+        }
+    }
+
+    // Convert to each sequential dataType, tolerating list modification
+    for ( ; (current = dataTypes[++i]); ) {
+
+        // There's only work to do if current dataType is non-auto
+        if ( current !== "*" ) {
+
+            // Convert response if prev dataType is non-auto and differs from current
+            if ( prev !== "*" && prev !== current ) {
+
+                // Seek a direct converter
+                conv = converters[ prev + " " + current ] || converters[ "* " + current ];
+
+                // If none found, seek a pair
+                if ( !conv ) {
+                    for ( conv2 in converters ) {
+
+                        // If conv2 outputs current
+                        tmp = conv2.split(" ");
+                        if ( tmp[ 1 ] === current ) {
+
+                            // If prev can be converted to accepted input
+                            conv = converters[ prev + " " + tmp[ 0 ] ] ||
+                                converters[ "* " + tmp[ 0 ] ];
+                            if ( conv ) {
+                                // Condense equivalence converters
+                                if ( conv === true ) {
+                                    conv = converters[ conv2 ];
+
+                                // Otherwise, insert the intermediate dataType
+                                } else if ( converters[ conv2 ] !== true ) {
+                                    current = tmp[ 0 ];
+                                    dataTypes.splice( i--, 0, current );
+                                }
+
+                                break;
+                            }
+                        }
+                    }
+                }
+
+                // Apply converter (if not an equivalence)
+                if ( conv !== true ) {
+
+                    // Unless errors are allowed to bubble, catch and return them
+                    if ( conv && s["throws"] ) {
+                        response = conv( response );
+                    } else {
+                        try {
+                            response = conv( response );
+                        } catch ( e ) {
+                            return { state: "parsererror", error: conv ? e : "No conversion from " + prev + " to " + current };
+                        }
+                    }
+                }
+            }
+
+            // Update prev for next iteration
+            prev = current;
+        }
+    }
+
+    return { state: "success", data: response };
+}
+// Install script dataType
+jQuery.ajaxSetup({
+    accepts: {
+        script: "text/javascript, application/javascript, application/ecmascript, application/x-ecmascript"
+    },
+    contents: {
+        script: /(?:java|ecma)script/
+    },
+    converters: {
+        "text script": function( text ) {
+            jQuery.globalEval( text );
+            return text;
+        }
+    }
+});
+
+// Handle cache's special case and global
+jQuery.ajaxPrefilter( "script", function( s ) {
+    if ( s.cache === undefined ) {
+        s.cache = false;
+    }
+    if ( s.crossDomain ) {
+        s.type = "GET";
+        s.global = false;
+    }
+});
+
+// Bind script tag hack transport
+jQuery.ajaxTransport( "script", function(s) {
+
+    // This transport only deals with cross domain requests
+    if ( s.crossDomain ) {
+
+        var script,
+            head = document.head || jQuery("head")[0] || document.documentElement;
+
+        return {
+
+            send: function( _, callback ) {
+
+                script = document.createElement("script");
+
+                script.async = true;
+
+                if ( s.scriptCharset ) {
+                    script.charset = s.scriptCharset;
+                }
+
+                script.src = s.url;
+
+                // Attach handlers for all browsers
+                script.onload = script.onreadystatechange = function( _, isAbort ) {
+
+                    if ( isAbort || !script.readyState || /loaded|complete/.test( script.readyState ) ) {
+
+                        // Handle memory leak in IE
+                        script.onload = script.onreadystatechange = null;
+
+                        // Remove the script
+                        if ( script.parentNode ) {
+                            script.parentNode.removeChild( script );
+                        }
+
+                        // Dereference the script
+                        script = null;
+
+                        // Callback if not abort
+                        if ( !isAbort ) {
+                            callback( 200, "success" );
+                        }
+                    }
+                };
+
+                // Circumvent IE6 bugs with base elements (#2709 and #4378) by prepending
+                // Use native DOM manipulation to avoid our domManip AJAX trickery
+                head.insertBefore( script, head.firstChild );
+            },
+
+            abort: function() {
+                if ( script ) {
+                    script.onload( undefined, true );
+                }
+            }
+        };
+    }
+});
+var oldCallbacks = [],
+    rjsonp = /(=)\?(?=&|$)|\?\?/;
+
+// Default jsonp settings
+jQuery.ajaxSetup({
+    jsonp: "callback",
+    jsonpCallback: function() {
+        var callback = oldCallbacks.pop() || ( jQuery.expando + "_" + ( ajax_nonce++ ) );
+        this[ callback ] = true;
+        return callback;
+    }
+});
+
+// Detect, normalize options and install callbacks for jsonp requests
+jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {
+
+    var callbackName, overwritten, responseContainer,
+        jsonProp = s.jsonp !== false && ( rjsonp.test( s.url ) ?
+            "url" :
+            typeof s.data === "string" && !( s.contentType || "" ).indexOf("application/x-www-form-urlencoded") && rjsonp.test( s.data ) && "data"
+        );
+
+    // Handle iff the expected data type is "jsonp" or we have a parameter to set
+    if ( jsonProp || s.dataTypes[ 0 ] === "jsonp" ) {
+
+        // Get callback name, remembering preexisting value associated with it
+        callbackName = s.jsonpCallback = jQuery.isFunction( s.jsonpCallback ) ?
+            s.jsonpCallback() :
+            s.jsonpCallback;
+
+        // Insert callback into url or form data
+        if ( jsonProp ) {
+            s[ jsonProp ] = s[ jsonProp ].replace( rjsonp, "$1" + callbackName );
+        } else if ( s.jsonp !== false ) {
+            s.url += ( ajax_rquery.test( s.url ) ? "&" : "?" ) + s.jsonp + "=" + callbackName;
+        }
+
+        // Use data converter to retrieve json after script execution
+        s.converters["script json"] = function() {
+            if ( !responseContainer ) {
+                jQuery.error( callbackName + " was not called" );
+            }
+            return responseContainer[ 0 ];
+        };
+
+        // force json dataType
+        s.dataTypes[ 0 ] = "json";
+
+        // Install callback
+        overwritten = window[ callbackName ];
+        window[ callbackName ] = function() {
+            responseContainer = arguments;
+        };
+
+        // Clean-up function (fires after converters)
+        jqXHR.always(function() {
+            // Restore preexisting value
+            window[ callbackName ] = overwritten;
+
+            // Save back as free
+            if ( s[ callbackName ] ) {
+                // make sure that re-using the options doesn't screw things around
+                s.jsonpCallback = originalSettings.jsonpCallback;
+
+                // save the callback name for future use
+                oldCallbacks.push( callbackName );
+            }
+
+            // Call if it was a function and we have a response
+            if ( responseContainer && jQuery.isFunction( overwritten ) ) {
+                overwritten( responseContainer[ 0 ] );
+            }
+
+            responseContainer = overwritten = undefined;
+        });
+
+        // Delegate to script
+        return "script";
+    }
+});
+var xhrCallbacks, xhrSupported,
+    xhrId = 0,
+    // #5280: Internet Explorer will keep connections alive if we don't abort on unload
+    xhrOnUnloadAbort = window.ActiveXObject && function() {
+        // Abort all pending requests
+        var key;
+        for ( key in xhrCallbacks ) {
+            xhrCallbacks[ key ]( undefined, true );
+        }
+    };
+
+// Functions to create xhrs
+function createStandardXHR() {
+    try {
+        return new window.XMLHttpRequest();
+    } catch( e ) {}
+}
+
+function createActiveXHR() {
+    try {
+        return new window.ActiveXObject("Microsoft.XMLHTTP");
+    } catch( e ) {}
+}
+
+// Create the request object
+// (This is still attached to ajaxSettings for backward compatibility)
+jQuery.ajaxSettings.xhr = window.ActiveXObject ?
+    /* Microsoft failed to properly
+     * implement the XMLHttpRequest in IE7 (can't request local files),
+     * so we use the ActiveXObject when it is available
+     * Additionally XMLHttpRequest can be disabled in IE7/IE8 so
+     * we need a fallback.
+     */
+    function() {
+        return !this.isLocal && createStandardXHR() || createActiveXHR();
+    } :
+    // For all other browsers, use the standard XMLHttpRequest object
+    createStandardXHR;
+
+// Determine support properties
+xhrSupported = jQuery.ajaxSettings.xhr();
+jQuery.support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
+xhrSupported = jQuery.support.ajax = !!xhrSupported;
+
+// Create transport if the browser can provide an xhr
+if ( xhrSupported ) {
+
+    jQuery.ajaxTransport(function( s ) {
+        // Cross domain only allowed if supported through XMLHttpRequest
+        if ( !s.crossDomain || jQuery.support.cors ) {
+
+            var callback;
+
+            return {
+                send: function( headers, complete ) {
+
+                    // Get a new xhr
+                    var handle, i,
+                        xhr = s.xhr();
+
+                    // Open the socket
+                    // Passing null username, generates a login popup on Opera (#2865)
+                    if ( s.username ) {
+                        xhr.open( s.type, s.url, s.async, s.username, s.password );
+                    } else {
+                        xhr.open( s.type, s.url, s.async );
+                    }
+
+                    // Apply custom fields if provided
+                    if ( s.xhrFields ) {
+                        for ( i in s.xhrFields ) {
+                            xhr[ i ] = s.xhrFields[ i ];
+                        }
+                    }
+
+                    // Override mime type if needed
+                    if ( s.mimeType && xhr.overrideMimeType ) {
+                        xhr.overrideMimeType( s.mimeType );
+                    }
+
+                    // X-Requested-With header
+                    // For cross-domain requests, seeing as conditions for a preflight are
+                    // akin to a jigsaw puzzle, we simply never set it to be sure.
+                    // (it can always be set on a per-request basis or even using ajaxSetup)
+                    // For same-domain requests, won't change header if already provided.
+                    if ( !s.crossDomain && !headers["X-Requested-With"] ) {
+                        headers["X-Requested-With"] = "XMLHttpRequest";
+                    }
+
+                    // Need an extra try/catch for cross domain requests in Firefox 3
+                    try {
+                        for ( i in headers ) {
+                            xhr.setRequestHeader( i, headers[ i ] );
+                        }
+                    } catch( err ) {}
+
+                    // Do send the request
+                    // This may raise an exception which is actually
+                    // handled in jQuery.ajax (so no try/catch here)
+                    xhr.send( ( s.hasContent && s.data ) || null );
+
+                    // Listener
+                    callback = function( _, isAbort ) {
+
+                        var status,
+                            statusText,
+                            responseHeaders,
+                            responses,
+                            xml;
+
+                        // Firefox throws exceptions when accessing properties
+                        // of an xhr when a network error occurred
+                        // http://helpful.knobs-dials.com/index.php/Component_returned_failure_code:_0x80040111_(NS_ERROR_NOT_AVAILABLE)
+                        try {
+
+                            // Was never called and is aborted or complete
+                            if ( callback && ( isAbort || xhr.readyState === 4 ) ) {
+
+                                // Only called once
+                                callback = undefined;
+
+                                // Do not keep as active anymore
+                                if ( handle ) {
+                                    xhr.onreadystatechange = jQuery.noop;
+                                    if ( xhrOnUnloadAbort ) {
+                                        delete xhrCallbacks[ handle ];
+                                    }
+                                }
+
+                                // If it's an abort
+                                if ( isAbort ) {
+                                    // Abort it manually if needed
+                                    if ( xhr.readyState !== 4 ) {
+                                        xhr.abort();
+                                    }
+                                } else {
+                                    responses = {};
+                                    status = xhr.status;
+                                    xml = xhr.responseXML;
+                                    responseHeaders = xhr.getAllResponseHeaders();
+
+                                    // Construct response list
+                                    if ( xml && xml.documentElement /* #4958 */ ) {
+                                        responses.xml = xml;
+                                    }
+
+                                    // When requesting binary data, IE6-9 will throw an exception
+                                    // on any attempt to access responseText (#11426)
+                                    if ( typeof xhr.responseText === "string" ) {
+                                        responses.text = xhr.responseText;
+                                    }
+
+                                    // Firefox throws an exception when accessing
+                                    // statusText for faulty cross-domain requests
+                                    try {
+                                        statusText = xhr.statusText;
+                                    } catch( e ) {
+                                        // We normalize with Webkit giving an empty statusText
+                                        statusText = "";
+                                    }
+
+                                    // Filter status for non standard behaviors
+
+                                    // If the request is local and we have data: assume a success
+                                    // (success with no data won't get notified, that's the best we
+                                    // can do given current implementations)
+                                    if ( !status && s.isLocal && !s.crossDomain ) {
+                                        status = responses.text ? 200 : 404;
+                                    // IE - #1450: sometimes returns 1223 when it should be 204
+                                    } else if ( status === 1223 ) {
+                                        status = 204;
+                                    }
+                                }
+                            }
+                        } catch( firefoxAccessException ) {
+                            if ( !isAbort ) {
+                                complete( -1, firefoxAccessException );
+                            }
+                        }
+
+                        // Call complete if needed
+                        if ( responses ) {
+                            complete( status, statusText, responses, responseHeaders );
+                        }
+                    };
+
+                    if ( !s.async ) {
+                        // if we're in sync mode we fire the callback
+                        callback();
+                    } else if ( xhr.readyState === 4 ) {
+                        // (IE6 & IE7) if it's in cache and has been
+                        // retrieved directly we need to fire the callback
+                        setTimeout( callback );
+                    } else {
+                        handle = ++xhrId;
+                        if ( xhrOnUnloadAbort ) {
+                            // Create the active xhrs callbacks list if needed
+                            // and attach the unload handler
+                            if ( !xhrCallbacks ) {
+                                xhrCallbacks = {};
+                                jQuery( window ).unload( xhrOnUnloadAbort );
+                            }
+                            // Add to list of active xhrs callbacks
+                            xhrCallbacks[ handle ] = callback;
+                        }
+                        xhr.onreadystatechange = callback;
+                    }
+                },
+
+                abort: function() {
+                    if ( callback ) {
+                        callback( undefined, true );
+                    }
+                }
+            };
+        }
+    });
+}
+var fxNow, timerId,
+    rfxtypes = /^(?:toggle|show|hide)$/,
+    rfxnum = new RegExp( "^(?:([+-])=|)(" + core_pnum + ")([a-z%]*)$", "i" ),
+    rrun = /queueHooks$/,
+    animationPrefilters = [ defaultPrefilter ],
+    tweeners = {
+        "*": [function( prop, value ) {
+            var end, unit,
+                tween = this.createTween( prop, value ),
+                parts = rfxnum.exec( value ),
+                target = tween.cur(),
+                start = +target || 0,
+                scale = 1,
+                maxIterations = 20;
+
+            if ( parts ) {
+                end = +parts[2];
+                unit = parts[3] || ( jQuery.cssNumber[ prop ] ? "" : "px" );
+
+                // We need to compute starting value
+                if ( unit !== "px" && start ) {
+                    // Iteratively approximate from a nonzero starting point
+                    // Prefer the current property, because this process will be trivial if it uses the same units
+                    // Fallback to end or a simple constant
+                    start = jQuery.css( tween.elem, prop, true ) || end || 1;
+
+                    do {
+                        // If previous iteration zeroed out, double until we get *something*
+                        // Use a string for doubling factor so we don't accidentally see scale as unchanged below
+                        scale = scale || ".5";
+
+                        // Adjust and apply
+                        start = start / scale;
+                        jQuery.style( tween.elem, prop, start + unit );
+
+                    // Update scale, tolerating zero or NaN from tween.cur()
+                    // And breaking the loop if scale is unchanged or perfect, or if we've just had enough
+                    } while ( scale !== (scale = tween.cur() / target) && scale !== 1 && --maxIterations );
+                }
+
+                tween.unit = unit;
+                tween.start = start;
+                // If a +=/-= token was provided, we're doing a relative animation
+                tween.end = parts[1] ? start + ( parts[1] + 1 ) * end : end;
+            }
+            return tween;
+        }]
+    };
+
+// Animations created synchronously will run synchronously
+function createFxNow() {
+    setTimeout(function() {
+        fxNow = undefined;
+    });
+    return ( fxNow = jQuery.now() );
+}
+
+function createTweens( animation, props ) {
+    jQuery.each( props, function( prop, value ) {
+        var collection = ( tweeners[ prop ] || [] ).concat( tweeners[ "*" ] ),
+            index = 0,
+            length = collection.length;
+        for ( ; index < length; index++ ) {
+            if ( collection[ index ].call( animation, prop, value ) ) {
+
+                // we're done with this property
+                return;
+            }
+        }
+    });
+}
+
+function Animation( elem, properties, options ) {
+    var result,
+        stopped,
+        index = 0,
+        length = animationPrefilters.length,
+        deferred = jQuery.Deferred().always( function() {
+            // don't match elem in the :animated selector
+            delete tick.elem;
+        }),
+        tick = function() {
+            if ( stopped ) {
+                return false;
+            }
+            var currentTime = fxNow || createFxNow(),
+                remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ),
+                // archaic crash bug won't allow us to use 1 - ( 0.5 || 0 ) (#12497)
+                temp = remaining / animation.duration || 0,
+                percent = 1 - temp,
+                index = 0,
+                length = animation.tweens.length;
+
+            for ( ; index < length ; index++ ) {
+                animation.tweens[ index ].run( percent );
+            }
+
+            deferred.notifyWith( elem, [ animation, percent, remaining ]);
+
+            if ( percent < 1 && length ) {
+                return remaining;
+            } else {
+                deferred.resolveWith( elem, [ animation ] );
+                return false;
+            }
+        },
+        animation = deferred.promise({
+            elem: elem,
+            props: jQuery.extend( {}, properties ),
+            opts: jQuery.extend( true, { specialEasing: {} }, options ),
+            originalProperties: properties,
+            originalOptions: options,
+            startTime: fxNow || createFxNow(),
+            duration: options.duration,
+            tweens: [],
+            createTween: function( prop, end ) {
+                var tween = jQuery.Tween( elem, animation.opts, prop, end,
+                        animation.opts.specialEasing[ prop ] || animation.opts.easing );
+                animation.tweens.push( tween );
+                return tween;
+            },
+            stop: function( gotoEnd ) {
+                var index = 0,
+                    // if we are going to the end, we want to run all the tweens
+                    // otherwise we skip this part
+                    length = gotoEnd ? animation.tweens.length : 0;
+                if ( stopped ) {
+                    return this;
+                }
+                stopped = true;
+                for ( ; index < length ; index++ ) {
+                    animation.tweens[ index ].run( 1 );
+                }
+
+                // resolve when we played the last frame
+                // otherwise, reject
+                if ( gotoEnd ) {
+                    deferred.resolveWith( elem, [ animation, gotoEnd ] );
+                } else {
+                    deferred.rejectWith( elem, [ animation, gotoEnd ] );
+                }
+                return this;
+            }
+        }),
+        props = animation.props;
+
+    propFilter( props, animation.opts.specialEasing );
+
+    for ( ; index < length ; index++ ) {
+        result = animationPrefilters[ index ].call( animation, elem, props, animation.opts );
+        if ( result ) {
+            return result;
+        }
+    }
+
+    createTweens( animation, props );
+
+    if ( jQuery.isFunction( animation.opts.start ) ) {
+        animation.opts.start.call( elem, animation );
+    }
+
+    jQuery.fx.timer(
+        jQuery.extend( tick, {
+            elem: elem,
+            anim: animation,
+            queue: animation.opts.queue
+        })
+    );
+
+    // attach callbacks from options
+    return animation.progress( animation.opts.progress )
+        .done( animation.opts.done, animation.opts.complete )
+        .fail( animation.opts.fail )
+        .always( animation.opts.always );
+}
+
+function propFilter( props, specialEasing ) {
+    var index, name, easing, value, hooks;
+
+    // camelCase, specialEasing and expand cssHook pass
+    for ( index in props ) {
+        name = jQuery.camelCase( index );
+        easing = specialEasing[ name ];
+        value = props[ index ];
+        if ( jQuery.isArray( value ) ) {
+            easing = value[ 1 ];
+            value = props[ index ] = value[ 0 ];
+        }
+
+        if ( index !== name ) {
+            props[ name ] = value;
+            delete props[ index ];
+        }
+
+        hooks = jQuery.cssHooks[ name ];
+        if ( hooks && "expand" in hooks ) {
+            value = hooks.expand( value );
+            delete props[ name ];
+
+            // not quite $.extend, this wont overwrite keys already present.
+            // also - reusing 'index' from above because we have the correct "name"
+            for ( index in value ) {
+                if ( !( index in props ) ) {
+                    props[ index ] = value[ index ];
+                    specialEasing[ index ] = easing;
+                }
+            }
+        } else {
+            specialEasing[ name ] = easing;
+        }
+    }
+}
+
+jQuery.Animation = jQuery.extend( Animation, {
+
+    tweener: function( props, callback ) {
+        if ( jQuery.isFunction( props ) ) {
+            callback = props;
+            props = [ "*" ];
+        } else {
+            props = props.split(" ");
+        }
+
+        var prop,
+            index = 0,
+            length = props.length;
+
+        for ( ; index < length ; index++ ) {
+            prop = props[ index ];
+            tweeners[ prop ] = tweeners[ prop ] || [];
+            tweeners[ prop ].unshift( callback );
+        }
+    },
+
+    prefilter: function( callback, prepend ) {
+        if ( prepend ) {
+            animationPrefilters.unshift( callback );
+        } else {
+            animationPrefilters.push( callback );
+        }
+    }
+});
+
+function defaultPrefilter( elem, props, opts ) {
+    /*jshint validthis:true */
+    var index, prop, value, length, dataShow, toggle, tween, hooks, oldfire,
+        anim = this,
+        style = elem.style,
+        orig = {},
+        handled = [],
+        hidden = elem.nodeType && isHidden( elem );
+
+    // handle queue: false promises
+    if ( !opts.queue ) {
+        hooks = jQuery._queueHooks( elem, "fx" );
+        if ( hooks.unqueued == null ) {
+            hooks.unqueued = 0;
+            oldfire = hooks.empty.fire;
+            hooks.empty.fire = function() {
+                if ( !hooks.unqueued ) {
+                    oldfire();
+                }
+            };
+        }
+        hooks.unqueued++;
+
+        anim.always(function() {
+            // doing this makes sure that the complete handler will be called
+            // before this completes
+            anim.always(function() {
+                hooks.unqueued--;
+                if ( !jQuery.queue( elem, "fx" ).length ) {
+                    hooks.empty.fire();
+                }
+            });
+        });
+    }
+
+    // height/width overflow pass
+    if ( elem.nodeType === 1 && ( "height" in props || "width" in props ) ) {
+        // Make sure that nothing sneaks out
+        // Record all 3 overflow attributes because IE does not
+        // change the overflow attribute when overflowX and
+        // overflowY are set to the same value
+        opts.overflow = [ style.overflow, style.overflowX, style.overflowY ];
+
+        // Set display property to inline-block for height/width
+        // animations on inline elements that are having width/height animated
+        if ( jQuery.css( elem, "display" ) === "inline" &&
+                jQuery.css( elem, "float" ) === "none" ) {
+
+            // inline-level elements accept inline-block;
+            // block-level elements need to be inline with layout
+            if ( !jQuery.support.inlineBlockNeedsLayout || css_defaultDisplay( elem.nodeName ) === "inline" ) {
+                style.display = "inline-block";
+
+            } else {
+                style.zoom = 1;
+            }
+        }
+    }
+
+    if ( opts.overflow ) {
+        style.overflow = "hidden";
+        if ( !jQuery.support.shrinkWrapBlocks ) {
+            anim.done(function() {
+                style.overflow = opts.overflow[ 0 ];
+                style.overflowX = opts.overflow[ 1 ];
+                style.overflowY = opts.overflow[ 2 ];
+            });
+        }
+    }
+
+
+    // show/hide pass
+    for ( index in props ) {
+        value = props[ index ];
+        if ( rfxtypes.exec( value ) ) {
+            delete props[ index ];
+            toggle = toggle || value === "toggle";
+            if ( value === ( hidden ? "hide" : "show" ) ) {
+                continue;
+            }
+            handled.push( index );
+        }
+    }
+
+    length = handled.length;
+    if ( length ) {
+        dataShow = jQuery._data( elem, "fxshow" ) || jQuery._data( elem, "fxshow", {} );
+        if ( "hidden" in dataShow ) {
+            hidden = dataShow.hidden;
+        }
+
+        // store state if its toggle - enables .stop().toggle() to "reverse"
+        if ( toggle ) {
+            dataShow.hidden = !hidden;
+        }
+        if ( hidden ) {
+            jQuery( elem ).show();
+        } else {
+            anim.done(function() {
+                jQuery( elem ).hide();
+            });
+        }
+        anim.done(function() {
+            var prop;
+            jQuery._removeData( elem, "fxshow" );
+            for ( prop in orig ) {
+                jQuery.style( elem, prop, orig[ prop ] );
+            }
+        });
+        for ( index = 0 ; index < length ; index++ ) {
+            prop = handled[ index ];
+            tween = anim.createTween( prop, hidden ? dataShow[ prop ] : 0 );
+            orig[ prop ] = dataShow[ prop ] || jQuery.style( elem, prop );
+
+            if ( !( prop in dataShow ) ) {
+                dataShow[ prop ] = tween.start;
+                if ( hidden ) {
+                    tween.end = tween.start;
+                    tween.start = prop === "width" || prop === "height" ? 1 : 0;
+                }
+            }
+        }
+    }
+}
+
+function Tween( elem, options, prop, end, easing ) {
+    return new Tween.prototype.init( elem, options, prop, end, easing );
+}
+jQuery.Tween = Tween;
+
+Tween.prototype = {
+    constructor: Tween,
+    init: function( elem, options, prop, end, easing, unit ) {
+        this.elem = elem;
+        this.prop = prop;
+        this.easing = easing || "swing";
+        this.options = options;
+        this.start = this.now = this.cur();
+        this.end = end;
+        this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" );
+    },
+    cur: function() {
+        var hooks = Tween.propHooks[ this.prop ];
+
+        return hooks && hooks.get ?
+            hooks.get( this ) :
+            Tween.propHooks._default.get( this );
+    },
+    run: function( percent ) {
+        var eased,
+            hooks = Tween.propHooks[ this.prop ];
+
+        if ( this.options.duration ) {
+            this.pos = eased = jQuery.easing[ this.easing ](
+                percent, this.options.duration * percent, 0, 1, this.options.duration
+            );
+        } else {
+            this.pos = eased = percent;
+        }
+        this.now = ( this.end - this.start ) * eased + this.start;
+
+        if ( this.options.step ) {
+            this.options.step.call( this.elem, this.now, this );
+        }
+
+        if ( hooks && hooks.set ) {
+            hooks.set( this );
+        } else {
+            Tween.propHooks._default.set( this );
+        }
+        return this;
+    }
+};
+
+Tween.prototype.init.prototype = Tween.prototype;
+
+Tween.propHooks = {
+    _default: {
+        get: function( tween ) {
+            var result;
+
+            if ( tween.elem[ tween.prop ] != null &&
+                (!tween.elem.style || tween.elem.style[ tween.prop ] == null) ) {
+                return tween.elem[ tween.prop ];
+            }
+
+            // passing a non empty string as a 3rd parameter to .css will automatically
+            // attempt a parseFloat and fallback to a string if the parse fails
+            // so, simple values such as "10px" are parsed to Float.
+            // complex values such as "rotate(1rad)" are returned as is.
+            result = jQuery.css( tween.elem, tween.prop, "auto" );
+            // Empty strings, null, undefined and "auto" are converted to 0.
+            return !result || result === "auto" ? 0 : result;
+        },
+        set: function( tween ) {
+            // use step hook for back compat - use cssHook if its there - use .style if its
+            // available and use plain properties where available
+            if ( jQuery.fx.step[ tween.prop ] ) {
+                jQuery.fx.step[ tween.prop ]( tween );
+            } else if ( tween.elem.style && ( tween.elem.style[ jQuery.cssProps[ tween.prop ] ] != null || jQuery.cssHooks[ tween.prop ] ) ) {
+                jQuery.style( tween.elem, tween.prop, tween.now + tween.unit );
+            } else {
+                tween.elem[ tween.prop ] = tween.now;
+            }
+        }
+    }
+};
+
+// Remove in 2.0 - this supports IE8's panic based approach
+// to setting things on disconnected nodes
+
+Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = {
+    set: function( tween ) {
+        if ( tween.elem.nodeType && tween.elem.parentNode ) {
+            tween.elem[ tween.prop ] = tween.now;
+        }
+    }
+};
+
+jQuery.each([ "toggle", "show", "hide" ], function( i, name ) {
+    var cssFn = jQuery.fn[ name ];
+    jQuery.fn[ name ] = function( speed, easing, callback ) {
+        return speed == null || typeof speed === "boolean" ?
+            cssFn.apply( this, arguments ) :
+            this.animate( genFx( name, true ), speed, easing, callback );
+    };
+});
+
+jQuery.fn.extend({
+    fadeTo: function( speed, to, easing, callback ) {
+
+        // show any hidden elements after setting opacity to 0
+        return this.filter( isHidden ).css( "opacity", 0 ).show()
+
+            // animate to the value specified
+            .end().animate({ opacity: to }, speed, easing, callback );
+    },
+    animate: function( prop, speed, easing, callback ) {
+        var empty = jQuery.isEmptyObject( prop ),
+            optall = jQuery.speed( speed, easing, callback ),
+            doAnimation = function() {
+                // Operate on a copy of prop so per-property easing won't be lost
+                var anim = Animation( this, jQuery.extend( {}, prop ), optall );
+                doAnimation.finish = function() {
+                    anim.stop( true );
+                };
+                // Empty animations, or finishing resolves immediately
+                if ( empty || jQuery._data( this, "finish" ) ) {
+                    anim.stop( true );
+                }
+            };
+            doAnimation.finish = doAnimation;
+
+        return empty || optall.queue === false ?
+            this.each( doAnimation ) :
+            this.queue( optall.queue, doAnimation );
+    },
+    stop: function( type, clearQueue, gotoEnd ) {
+        var stopQueue = function( hooks ) {
+            var stop = hooks.stop;
+            delete hooks.stop;
+            stop( gotoEnd );
+        };
+
+        if ( typeof type !== "string" ) {
+            gotoEnd = clearQueue;
+            clearQueue = type;
+            type = undefined;
+        }
+        if ( clearQueue && type !== false ) {
+            this.queue( type || "fx", [] );
+        }
+
+        return this.each(function() {
+            var dequeue = true,
+                index = type != null && type + "queueHooks",
+                timers = jQuery.timers,
+                data = jQuery._data( this );
+
+            if ( index ) {
+                if ( data[ index ] && data[ index ].stop ) {
+                    stopQueue( data[ index ] );
+                }
+            } else {
+                for ( index in data ) {
+                    if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) {
+                        stopQueue( data[ index ] );
+                    }
+                }
+            }
+
+            for ( index = timers.length; index--; ) {
+                if ( timers[ index ].elem === this && (type == null || timers[ index ].queue === type) ) {
+                    timers[ index ].anim.stop( gotoEnd );
+                    dequeue = false;
+                    timers.splice( index, 1 );
+                }
+            }
+
+            // start the next in the queue if the last step wasn't forced
+            // timers currently will call their complete callbacks, which will dequeue
+            // but only if they were gotoEnd
+            if ( dequeue || !gotoEnd ) {
+                jQuery.dequeue( this, type );
+            }
+        });
+    },
+    finish: function( type ) {
+        if ( type !== false ) {
+            type = type || "fx";
+        }
+        return this.each(function() {
+            var index,
+                data = jQuery._data( this ),
+                queue = data[ type + "queue" ],
+                hooks = data[ type + "queueHooks" ],
+                timers = jQuery.timers,
+                length = queue ? queue.length : 0;
+
+            // enable finishing flag on private data
+            data.finish = true;
+
+            // empty the queue first
+            jQuery.queue( this, type, [] );
+
+            if ( hooks && hooks.cur && hooks.cur.finish ) {
+                hooks.cur.finish.call( this );
+            }
+
+            // look for any active animations, and finish them
+            for ( index = timers.length; index--; ) {
+                if ( timers[ index ].elem === this && timers[ index ].queue === type ) {
+                    timers[ index ].anim.stop( true );
+                    timers.splice( index, 1 );
+                }
+            }
+
+            // look for any animations in the old queue and finish them
+            for ( index = 0; index < length; index++ ) {
+                if ( queue[ index ] && queue[ index ].finish ) {
+                    queue[ index ].finish.call( this );
+                }
+            }
+
+            // turn off finishing flag
+            delete data.finish;
+        });
+    }
+});
+
+// Generate parameters to create a standard animation
+function genFx( type, includeWidth ) {
+    var which,
+        attrs = { height: type },
+        i = 0;
+
+    // if we include width, step value is 1 to do all cssExpand values,
+    // if we don't include width, step value is 2 to skip over Left and Right
+    includeWidth = includeWidth? 1 : 0;
+    for( ; i < 4 ; i += 2 - includeWidth ) {
+        which = cssExpand[ i ];
+        attrs[ "margin" + which ] = attrs[ "padding" + which ] = type;
+    }
+
+    if ( includeWidth ) {
+        attrs.opacity = attrs.width = type;
+    }
+
+    return attrs;
+}
+
+// Generate shortcuts for custom animations
+jQuery.each({
+    slideDown: genFx("show"),
+    slideUp: genFx("hide"),
+    slideToggle: genFx("toggle"),
+    fadeIn: { opacity: "show" },
+    fadeOut: { opacity: "hide" },
+    fadeToggle: { opacity: "toggle" }
+}, function( name, props ) {
+    jQuery.fn[ name ] = function( speed, easing, callback ) {
+        return this.animate( props, speed, easing, callback );
+    };
+});
+
+jQuery.speed = function( speed, easing, fn ) {
+    var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : {
+        complete: fn || !fn && easing ||
+            jQuery.isFunction( speed ) && speed,
+        duration: speed,
+        easing: fn && easing || easing && !jQuery.isFunction( easing ) && easing
+    };
+
+    opt.duration = jQuery.fx.off ? 0 : typeof opt.duration === "number" ? opt.duration :
+        opt.duration in jQuery.fx.speeds ? jQuery.fx.speeds[ opt.duration ] : jQuery.fx.speeds._default;
+
+    // normalize opt.queue - true/undefined/null -> "fx"
+    if ( opt.queue == null || opt.queue === true ) {
+        opt.queue = "fx";
+    }
+
+    // Queueing
+    opt.old = opt.complete;
+
+    opt.complete = function() {
+        if ( jQuery.isFunction( opt.old ) ) {
+            opt.old.call( this );
+        }
+
+        if ( opt.queue ) {
+            jQuery.dequeue( this, opt.queue );
+        }
+    };
+
+    return opt;
+};
+
+jQuery.easing = {
+    linear: function( p ) {
+        return p;
+    },
+    swing: function( p ) {
+        return 0.5 - Math.cos( p*Math.PI ) / 2;
+    }
+};
+
+jQuery.timers = [];
+jQuery.fx = Tween.prototype.init;
+jQuery.fx.tick = function() {
+    var timer,
+        timers = jQuery.timers,
+        i = 0;
+
+    fxNow = jQuery.now();
+
+    for ( ; i < timers.length; i++ ) {
+        timer = timers[ i ];
+        // Checks the timer has not already been removed
+        if ( !timer() && timers[ i ] === timer ) {
+            timers.splice( i--, 1 );
+        }
+    }
+
+    if ( !timers.length ) {
+        jQuery.fx.stop();
+    }
+    fxNow = undefined;
+};
+
+jQuery.fx.timer = function( timer ) {
+    if ( timer() && jQuery.timers.push( timer ) ) {
+        jQuery.fx.start();
+    }
+};
+
+jQuery.fx.interval = 13;
+
+jQuery.fx.start = function() {
+    if ( !timerId ) {
+        timerId = setInterval( jQuery.fx.tick, jQuery.fx.interval );
+    }
+};
+
+jQuery.fx.stop = function() {
+    clearInterval( timerId );
+    timerId = null;
+};
+
+jQuery.fx.speeds = {
+    slow: 600,
+    fast: 200,
+    // Default speed
+    _default: 400
+};
+
+// Back Compat <1.8 extension point
+jQuery.fx.step = {};
+
+if ( jQuery.expr && jQuery.expr.filters ) {
+    jQuery.expr.filters.animated = function( elem ) {
+        return jQuery.grep(jQuery.timers, function( fn ) {
+            return elem === fn.elem;
+        }).length;
+    };
+}
+jQuery.fn.offset = function( options ) {
+    if ( arguments.length ) {
+        return options === undefined ?
+            this :
+            this.each(function( i ) {
+                jQuery.offset.setOffset( this, options, i );
+            });
+    }
+
+    var docElem, win,
+        box = { top: 0, left: 0 },
+        elem = this[ 0 ],
+        doc = elem && elem.ownerDocument;
+
+    if ( !doc ) {
+        return;
+    }
+
+    docElem = doc.documentElement;
+
+    // Make sure it's not a disconnected DOM node
+    if ( !jQuery.contains( docElem, elem ) ) {
+        return box;
+    }
+
+    // If we don't have gBCR, just use 0,0 rather than error
+    // BlackBerry 5, iOS 3 (original iPhone)
+    if ( typeof elem.getBoundingClientRect !== "undefined" ) {
+        box = elem.getBoundingClientRect();
+    }
+    win = getWindow( doc );
+    return {
+        top: box.top  + ( win.pageYOffset || docElem.scrollTop )  - ( docElem.clientTop  || 0 ),
+        left: box.left + ( win.pageXOffset || docElem.scrollLeft ) - ( docElem.clientLeft || 0 )
+    };
+};
+
+jQuery.offset = {
+
+    setOffset: function( elem, options, i ) {
+        var position = jQuery.css( elem, "position" );
+
+        // set position first, in-case top/left are set even on static elem
+        if ( position === "static" ) {
+            elem.style.position = "relative";
+        }
+
+        var curElem = jQuery( elem ),
+            curOffset = curElem.offset(),
+            curCSSTop = jQuery.css( elem, "top" ),
+            curCSSLeft = jQuery.css( elem, "left" ),
+            calculatePosition = ( position === "absolute" || position === "fixed" ) && jQuery.inArray("auto", [curCSSTop, curCSSLeft]) > -1,
+            props = {}, curPosition = {}, curTop, curLeft;
+
+        // need to be able to calculate position if either top or left is auto and position is either absolute or fixed
+        if ( calculatePosition ) {
+            curPosition = curElem.position();
+            curTop = curPosition.top;
+            curLeft = curPosition.left;
+        } else {
+            curTop = parseFloat( curCSSTop ) || 0;
+            curLeft = parseFloat( curCSSLeft ) || 0;
+        }
+
+        if ( jQuery.isFunction( options ) ) {
+            options = options.call( elem, i, curOffset );
+        }
+
+        if ( options.top != null ) {
+            props.top = ( options.top - curOffset.top ) + curTop;
+        }
+        if ( options.left != null ) {
+            props.left = ( options.left - curOffset.left ) + curLeft;
+        }
+
+        if ( "using" in options ) {
+            options.using.call( elem, props );
+        } else {
+            curElem.css( props );
+        }
+    }
+};
+
+
+jQuery.fn.extend({
+
+    position: function() {
+        if ( !this[ 0 ] ) {
+            return;
+        }
+
+        var offsetParent, offset,
+            parentOffset = { top: 0, left: 0 },
+            elem = this[ 0 ];
+
+        // fixed elements are offset from window (parentOffset = {top:0, left: 0}, because it is it's only offset parent
+        if ( jQuery.css( elem, "position" ) === "fixed" ) {
+            // we assume that getBoundingClientRect is available when computed position is fixed
+            offset = elem.getBoundingClientRect();
+        } else {
+            // Get *real* offsetParent
+            offsetParent = this.offsetParent();
+
+            // Get correct offsets
+            offset = this.offset();
+            if ( !jQuery.nodeName( offsetParent[ 0 ], "html" ) ) {
+                parentOffset = offsetParent.offset();
+            }
+
+            // Add offsetParent borders
+            parentOffset.top  += jQuery.css( offsetParent[ 0 ], "borderTopWidth", true );
+            parentOffset.left += jQuery.css( offsetParent[ 0 ], "borderLeftWidth", true );
+        }
+
+        // Subtract parent offsets and element margins
+        // note: when an element has margin: auto the offsetLeft and marginLeft
+        // are the same in Safari causing offset.left to incorrectly be 0
+        return {
+            top:  offset.top  - parentOffset.top - jQuery.css( elem, "marginTop", true ),
+            left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true)
+        };
+    },
+
+    offsetParent: function() {
+        return this.map(function() {
+            var offsetParent = this.offsetParent || document.documentElement;
+            while ( offsetParent && ( !jQuery.nodeName( offsetParent, "html" ) && jQuery.css( offsetParent, "position") === "static" ) ) {
+                offsetParent = offsetParent.offsetParent;
+            }
+            return offsetParent || document.documentElement;
+        });
+    }
+});
+
+
+// Create scrollLeft and scrollTop methods
+jQuery.each( {scrollLeft: "pageXOffset", scrollTop: "pageYOffset"}, function( method, prop ) {
+    var top = /Y/.test( prop );
+
+    jQuery.fn[ method ] = function( val ) {
+        return jQuery.access( this, function( elem, method, val ) {
+            var win = getWindow( elem );
+
+            if ( val === undefined ) {
+                return win ? (prop in win) ? win[ prop ] :
+                    win.document.documentElement[ method ] :
+                    elem[ method ];
+            }
+
+            if ( win ) {
+                win.scrollTo(
+                    !top ? val : jQuery( win ).scrollLeft(),
+                    top ? val : jQuery( win ).scrollTop()
+                );
+
+            } else {
+                elem[ method ] = val;
+            }
+        }, method, val, arguments.length, null );
+    };
+});
+
+function getWindow( elem ) {
+    return jQuery.isWindow( elem ) ?
+        elem :
+        elem.nodeType === 9 ?
+            elem.defaultView || elem.parentWindow :
+            false;
+}
+// Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods
+jQuery.each( { Height: "height", Width: "width" }, function( name, type ) {
+    jQuery.each( { padding: "inner" + name, content: type, "": "outer" + name }, function( defaultExtra, funcName ) {
+        // margin is only for outerHeight, outerWidth
+        jQuery.fn[ funcName ] = function( margin, value ) {
+            var chainable = arguments.length && ( defaultExtra || typeof margin !== "boolean" ),
+                extra = defaultExtra || ( margin === true || value === true ? "margin" : "border" );
+
+            return jQuery.access( this, function( elem, type, value ) {
+                var doc;
+
+                if ( jQuery.isWindow( elem ) ) {
+                    // As of 5/8/2012 this will yield incorrect results for Mobile Safari, but there
+                    // isn't a whole lot we can do. See pull request at this URL for discussion:
+                    // https://github.com/jquery/jquery/pull/764
+                    return elem.document.documentElement[ "client" + name ];
+                }
+
+                // Get document width or height
+                if ( elem.nodeType === 9 ) {
+                    doc = elem.documentElement;
+
+                    // Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height], whichever is greatest
+                    // unfortunately, this causes bug #3838 in IE6/8 only, but there is currently no good, small way to fix it.
+                    return Math.max(
+                        elem.body[ "scroll" + name ], doc[ "scroll" + name ],
+                        elem.body[ "offset" + name ], doc[ "offset" + name ],
+                        doc[ "client" + name ]
+                    );
+                }
+
+                return value === undefined ?
+                    // Get width or height on the element, requesting but not forcing parseFloat
+                    jQuery.css( elem, type, extra ) :
+
+                    // Set width or height on the element
+                    jQuery.style( elem, type, value, extra );
+            }, type, chainable ? margin : undefined, chainable, null );
+        };
+    });
+});
+// Limit scope pollution from any deprecated API
+// (function() {
+
+// })();
+// Expose jQuery to the global object
+window.jQuery = window.$ = jQuery;
+
+// Expose jQuery as an AMD module, but only for AMD loaders that
+// understand the issues with loading multiple versions of jQuery
+// in a page that all might call define(). The loader will indicate
+// they have special allowances for multiple jQuery versions by
+// specifying define.amd.jQuery = true. Register as a named module,
+// since jQuery can be concatenated with other files that may use define,
+// but not use a proper concatenation script that understands anonymous
+// AMD modules. A named AMD is safest and most robust way to register.
+// Lowercase jquery is used because AMD module names are derived from
+// file names, and jQuery is normally delivered in a lowercase file name.
+// Do this after creating the global so that if an AMD module wants to call
+// noConflict to hide this version of jQuery, it will work.
+if ( typeof define === "function" && define.amd && define.amd.jQuery ) {
+    define( "jquery", [], function () { return jQuery; } );
+}
+
+})( window );
\ No newline at end of file
diff --git a/addons/im_livechat/static/ext/static/js/livesupport.js b/addons/im_livechat/static/ext/static/js/livesupport.js
new file mode 100644
index 00000000000..0b9e52d2c07
--- /dev/null
+++ b/addons/im_livechat/static/ext/static/js/livesupport.js
@@ -0,0 +1,446 @@
+
+define(["nova", "underscore", "oeclient", "require", "jquery",
+        "jquery.achtung"], function(nova, _, oeclient, require, $) {
+    var livesupport = {};
+
+    var templateEngine = new nova.TemplateEngine();
+    templateEngine.extendEnvironment({"toUrl": _.bind(require.toUrl, require)});
+    var connection;
+
+    var defaultInputPlaceholder;
+    var userName;
+
+    livesupport.main = function(server_url, db, login, password, channel, options) {
+        var defs = [];
+        options = options || {};
+        _.defaults(options, {
+            buttonText: "Chat with one of our collaborators",
+            inputPlaceholder: "How may I help you?",
+            defaultMessage: null,
+            auto: false,
+            userName: "Anonymous",
+        });
+        defaultInputPlaceholder = options.inputPlaceholder;
+        userName = options.userName;
+        defs.push($.ajax({
+            url: require.toUrl("./livesupport_templates.js"),
+            jsonp: false,
+            jsonpCallback: "oe_livesupport_templates_callback",
+            dataType: "jsonp",
+            cache: true,
+        }).then(function(content) {
+            return templateEngine.loadFileContent(content);
+        }));
+        defs.push(add_css("../css/livesupport.css"));
+        defs.push(add_css("./jquery.achtung.css"));
+
+        $.when.apply($, defs).then(function() {
+            console.log("starting live support customer app");
+            connection = new oeclient.Connection(new oeclient.JsonpRPCConnector(server_url), db, login, password);
+            connection.connector.call("/im_livechat/available", {db: db, channel: channel}).then(function(activated) {
+                if (! activated & ! options.auto)
+                    return;
+                var button = new livesupport.ChatButton(null, channel, options);
+                button.appendTo($("body"));
+                if (options.auto)
+                    button.click();
+            });
+        });
+    };
+
+    var add_css = function(relative_file_name) {
+        var css_def = $.Deferred();
+        $('<link rel="stylesheet" href="' + require.toUrl(relative_file_name) + '"></link>')
+                .appendTo($("head")).ready(function() {
+            css_def.resolve();
+        });
+        return css_def.promise();
+    };
+
+    var notification = function(message) {
+        $.achtung({message: message, timeout: 0, showEffects: false, hideEffects: false});
+    };
+
+    var ERROR_DELAY = 5000;
+
+    livesupport.ChatButton = nova.Widget.$extend({
+        className: "openerp_style oe_chat_button",
+        events: {
+            "click": "click",
+        },
+        __init__: function(parent, channel, options) {
+            this.$super(parent);
+            this.channel = channel;
+            this.options = options;
+            this.text = options.buttonText;
+        },
+        render: function() {
+            this.$().append(templateEngine.chatButton({widget: this}));
+        },
+        click: function() {
+            if (! this.manager) {
+                this.manager = new livesupport.ConversationManager(null);
+                this.activated_def = this.manager.start_polling();
+            }
+            var def = $.Deferred();
+            $.when(this.activated_def).then(function() {
+                def.resolve();
+            }, function() {
+                def.reject();
+            });
+            setTimeout(function() {
+                def.reject();
+            }, 5000);
+            def.then(_.bind(this.chat, this), function() {
+                notification("It seems the connection to the server is encountering problems, please try again later.");
+            });
+        },
+        chat: function() {
+            var self = this;
+            if (this.manager.conversations.length > 0)
+                return;
+            connection.getModel("im_livechat.channel").call("get_available_user", [this.channel]).then(function(user_id) {
+                if (! user_id) {
+                    notification("None of our collaborators seems to be available, please try again later.");
+                    return;
+                }
+                self.manager.ensure_users([user_id]).then(function() {
+                    var conv = self.manager.activate_user(self.manager.get_user(user_id), true);
+                    if (self.options.defaultMessage) {
+                        conv.received_message({message: self.options.defaultMessage, 
+                            date: oeclient.datetime_to_str(new Date())});
+                    }
+                });
+            });
+        },
+    });
+
+    livesupport.ImUser = nova.Class.$extend({
+        __include__: [nova.DynamicProperties],
+        __init__: function(parent, user_rec) {
+            nova.DynamicProperties.__init__.call(this, parent);
+            user_rec.image_url = require.toUrl("../img/avatar/avatar.jpeg");
+            if (user_rec.image)
+                user_rec.image_url = "data:image/png;base64," + user_rec.image;
+            this.set(user_rec);
+            this.set("watcher_count", 0);
+            this.on("change:watcher_count", this, function() {
+                if (this.get("watcher_count") === 0)
+                    this.destroy();
+            });
+        },
+        destroy: function() {
+            this.trigger("destroyed");
+            nova.DynamicProperties.destroy.call(this);
+        },
+        add_watcher: function() {
+            this.set("watcher_count", this.get("watcher_count") + 1);
+        },
+        remove_watcher: function() {
+            this.set("watcher_count", this.get("watcher_count") - 1);
+        },
+    });
+
+    livesupport.ConversationManager = nova.Class.$extend({
+        __include__: [nova.DynamicProperties],
+        __init__: function(parent) {
+            nova.DynamicProperties.__init__.call(this, parent);
+            this.set("right_offset", 0);
+            this.conversations = [];
+            this.users = {};
+            this.on("change:right_offset", this, this.calc_positions);
+            this.set("window_focus", true);
+            this.set("waiting_messages", 0);
+            this.focus_hdl = _.bind(function() {
+                this.set("window_focus", true);
+            }, this);
+            $(window).bind("focus", this.focus_hdl);
+            this.blur_hdl = _.bind(function() {
+                this.set("window_focus", false);
+            }, this);
+            $(window).bind("blur", this.blur_hdl);
+            this.on("change:window_focus", this, this.window_focus_change);
+            this.window_focus_change();
+            this.on("change:waiting_messages", this, this.messages_change);
+            this.messages_change();
+            this.create_ting();
+            this.activated = false;
+            this.users_cache = {};
+            this.last = null;
+            this.unload_event_handler = _.bind(this.unload, this);
+        },
+        start_polling: function() {
+            var self = this;
+
+            var uuid = localStorage["oe_livesupport_uuid"];
+            var def = $.when(uuid);
+
+            if (! uuid) {
+                def = connection.connector.call("/longpolling/im/gen_uuid", {});
+            }
+            return def.then(function(uuid) {
+                localStorage["oe_livesupport_uuid"] = uuid;
+                return connection.getModel("im.user").call("get_by_user_id", [uuid]);
+            }).then(function(my_id) {
+                self.my_id = my_id["id"];
+                return connection.getModel("im.user").call("assign_name", [uuid, userName]);
+            }).then(function() {
+                return self.ensure_users([self.my_id])
+            }).then(function() {
+                var me = self.users_cache[self.my_id];
+                delete self.users_cache[self.my_id];
+                self.me = me;
+                me.set("name", "You");
+                return connection.connector.call("/longpolling/im/activated", {});
+            }).then(function(activated) {
+                if (activated) {
+                    self.activated = true;
+                    $(window).on("unload", self.unload_event_handler);
+                    self.poll();
+                } else {
+                    return $.Deferred().reject();
+                }
+            });
+        },
+        unload: function() {
+            connection.getModel("im.user").call("im_disconnect", [], {uuid: this.me.get("uuid"), context: {}});
+        },
+        ensure_users: function(user_ids) {
+            var no_cache = {};
+            _.each(user_ids, function(el) {
+                if (! this.users_cache[el])
+                    no_cache[el] = el;
+            }, this);
+            var self = this;
+            if (_.size(no_cache) === 0)
+                return $.when();
+            else
+                return connection.getModel("im.user").call("read", [_.values(no_cache), []]).then(function(users) {
+                    self.add_to_user_cache(users);
+                });
+        },
+        add_to_user_cache: function(user_recs) {
+            _.each(user_recs, function(user_rec) {
+                if (! this.users_cache[user_rec.id]) {
+                    var user = new livesupport.ImUser(this, user_rec);
+                    this.users_cache[user_rec.id] = user;
+                    user.on("destroyed", this, function() {
+                        delete this.users_cache[user_rec.id];
+                    });
+                }
+            }, this);
+        },
+        get_user: function(user_id) {
+            return this.users_cache[user_id];
+        },
+        poll: function() {
+            console.debug("live support beggin polling");
+            var self = this;
+            var user_ids = _.map(this.users_cache, function(el) {
+                return el.get("id");
+            });
+            connection.connector.call("/longpolling/im/poll", {
+                last: this.last,
+                users_watch: user_ids,
+                db: connection.database,
+                uid: connection.userId,
+                password: connection.password,
+                uuid: self.me.get("uuid"),
+            }).then(function(result) {
+                _.each(result.users_status, function(el) {
+                    if (self.get_user(el.id))
+                        self.get_user(el.id).set(el);
+                });
+                self.last = result.last;
+                var user_ids = _.pluck(_.pluck(result.res, "from_id"), 0);
+                self.ensure_users(user_ids).then(function() {
+                    _.each(result.res, function(mes) {
+                        var user = self.get_user(mes.from_id[0]);
+                        self.received_message(mes, user);
+                    });
+                    self.poll();
+                });
+            }, function() {
+                setTimeout(_.bind(self.poll, self), ERROR_DELAY);
+            });
+        },
+        get_activated: function() {
+            return this.activated;
+        },
+        create_ting: function() {
+            this.ting = new Audio(new Audio().canPlayType("audio/ogg; codecs=vorbis") ?
+                require.toUrl("../audio/Ting.ogg") :
+                require.toUrl("../audio/Ting.mp3")
+            );
+        },
+        window_focus_change: function() {
+            if (this.get("window_focus")) {
+                this.set("waiting_messages", 0);
+            }
+        },
+        messages_change: function() {
+            /*if (! instance.webclient.set_title_part)
+                return;
+            instance.webclient.set_title_part("im_messages", this.get("waiting_messages") === 0 ? undefined :
+                _.str.sprintf(_t("%d Messages"), this.get("waiting_messages")));*/
+        },
+        activate_user: function(user, focus) {
+            var conv = this.users[user.get('id')];
+            if (! conv) {
+                conv = new livesupport.Conversation(this, user, this.me);
+                conv.appendTo($("body"));
+                conv.on("destroyed", this, function() {
+                    this.conversations = _.without(this.conversations, conv);
+                    delete this.users[conv.user.get('id')];
+                    this.calc_positions();
+                });
+                this.conversations.push(conv);
+                this.users[user.get('id')] = conv;
+                this.calc_positions();
+            }
+            if (focus)
+                conv.focus();
+            return conv;
+        },
+        received_message: function(message, user) {
+            if (! this.get("window_focus")) {
+                this.set("waiting_messages", this.get("waiting_messages") + 1);
+                this.ting.play();
+                this.create_ting();
+            }
+            var conv = this.activate_user(user);
+            conv.received_message(message);
+        },
+        calc_positions: function() {
+            var current = this.get("right_offset");
+            _.each(_.range(this.conversations.length), function(i) {
+                this.conversations[i].set("right_position", current);
+                current += this.conversations[i].$().outerWidth(true);
+            }, this);
+        },
+        destroy: function() {
+            $(window).off("unload", this.unload_event_handler);
+            $(window).unbind("blur", this.blur_hdl);
+            $(window).unbind("focus", this.focus_hdl);
+            nova.DynamicProperties.destroy.call(this);
+        },
+    });
+
+    livesupport.Conversation = nova.Widget.$extend({
+        className: "openerp_style oe_im_chatview",
+        events: {
+            "keydown input": "send_message",
+            "click .oe_im_chatview_close": "destroy",
+            "click .oe_im_chatview_header": "show_hide",
+        },
+        __init__: function(parent, user, me) {
+            this.$super(parent);
+            this.me = me;
+            this.user = user;
+            this.user.add_watcher();
+            this.set("right_position", 0);
+            this.shown = true;
+            this.set("pending", 0);
+            this.inputPlaceholder = defaultInputPlaceholder;
+        },
+        render: function() {
+            this.$().append(templateEngine.conversation({widget: this}));
+            var change_status = function() {
+                this.$().toggleClass("oe_im_chatview_disconnected_status", this.user.get("im_status") === false);
+                this.$(".oe_im_chatview_online").toggle(this.user.get("im_status") === true);
+                this._go_bottom();
+            };
+            this.user.on("change:im_status", this, change_status);
+            change_status.call(this);
+
+            this.on("change:right_position", this, this.calc_pos);
+            this.full_height = this.$().height();
+            this.calc_pos();
+            this.on("change:pending", this, _.bind(function() {
+                if (this.get("pending") === 0) {
+                    this.$(".oe_im_chatview_nbr_messages").text("");
+                } else {
+                    this.$(".oe_im_chatview_nbr_messages").text("(" + this.get("pending") + ")");
+                }
+            }, this));
+        },
+        show_hide: function() {
+            if (this.shown) {
+                this.$().animate({
+                    height: this.$(".oe_im_chatview_header").outerHeight(),
+                });
+            } else {
+                this.$().animate({
+                    height: this.full_height,
+                });
+            }
+            this.shown = ! this.shown;
+            if (this.shown) {
+                this.set("pending", 0);
+            }
+        },
+        calc_pos: function() {
+            this.$().css("right", this.get("right_position"));
+        },
+        received_message: function(message) {
+            if (this.shown) {
+                this.set("pending", 0);
+            } else {
+                this.set("pending", this.get("pending") + 1);
+            }
+            this._add_bubble(this.user, message.message, oeclient.str_to_datetime(message.date));
+        },
+        send_message: function(e) {
+            if(e && e.which !== 13) {
+                return;
+            }
+            var mes = this.$("input").val();
+            this.$("input").val("");
+            var send_it = _.bind(function() {
+                var model = connection.getModel("im.message");
+                return model.call("post", [mes, this.user.get('id')], {uuid: this.me.get("uuid"), context: {}});
+            }, this);
+            var tries = 0;
+            send_it().then(_.bind(function() {
+                this._add_bubble(this.me, mes, new Date());
+            }, this), function(error, e) {
+                tries += 1;
+                if (tries < 3)
+                    return send_it();
+            });
+        },
+        _add_bubble: function(user, item, date) {
+            var items = [item];
+            if (user === this.last_user) {
+                this.last_bubble.remove();
+                items = this.last_items.concat(items);
+            }
+            this.last_user = user;
+            this.last_items = items;
+            var zpad = function(str, size) {
+                str = "" + str;
+                return new Array(size - str.length + 1).join('0') + str;
+            };
+            date = "" + zpad(date.getHours(), 2) + ":" + zpad(date.getMinutes(), 2);
+            
+            this.last_bubble = $(templateEngine.conversation_bubble({"items": items, "user": user, "time": date}));
+            $(this.$(".oe_im_chatview_content").children()[0]).append(this.last_bubble);
+            this._go_bottom();
+        },
+        _go_bottom: function() {
+            this.$(".oe_im_chatview_content").scrollTop($(this.$(".oe_im_chatview_content").children()[0]).height());
+        },
+        focus: function() {
+            this.$(".oe_im_chatview_input").focus();
+        },
+        destroy: function() {
+            this.user.remove_watcher();
+            this.trigger("destroyed");
+            return this.$super();
+        },
+    });
+
+
+
+    return livesupport;
+});
diff --git a/addons/im_livechat/static/ext/static/js/livesupport_templates.html b/addons/im_livechat/static/ext/static/js/livesupport_templates.html
new file mode 100644
index 00000000000..54cdf450dc1
--- /dev/null
+++ b/addons/im_livechat/static/ext/static/js/livesupport_templates.html
@@ -0,0 +1,36 @@
+
+<%def name="conversation">
+    <div class="oe_im_chatview_header">
+        <img src="${toUrl('../img/green.png')}" class="oe_im_chatview_online"/>
+        ${widget.user.get('name') || 'You'}
+        <button class="oe_im_chatview_close">×</button>
+    </div>
+    <div class="oe_im_chatview_disconnected">
+        ${widget.user.get("name") + " is offline. He/She will receive your messages on his/her next connection."}
+    </div>
+    <div class="oe_im_chatview_content">
+        <div></div>
+    </div>
+    <div class="oe_im_chatview_footer">
+        <input class="oe_im_chatview_input" placeholder="${widget.inputPlaceholder}" />
+    </div>
+</%def>
+
+<%def name="conversation_bubble">
+    <div class="oe_im_chatview_bubble">
+        <div class="oe_im_chatview_clip">
+            <img class="oe_im_chatview_avatar" src="${user.get('image_url')}"/>
+        </div>
+        <div class="oe_im_chatview_from">${user.get('name') || 'You'}</div>
+        <div class="oe_im_chatview_bubble_list">
+            % _.each(items, function(item) {
+                <div class="oe_im_chatview_bubble_item">${item}</div>
+            % });
+        </div>
+        <div class="oe_im_chatview_time">${time}</div>
+    </div>
+</%def>
+
+<%def name="chatButton">
+    ${widget.text}
+</%def>
\ No newline at end of file
diff --git a/addons/im_livechat/static/ext/static/js/livesupport_templates.js b/addons/im_livechat/static/ext/static/js/livesupport_templates.js
new file mode 100644
index 00000000000..aaabfd38caf
--- /dev/null
+++ b/addons/im_livechat/static/ext/static/js/livesupport_templates.js
@@ -0,0 +1 @@
+window.oe_livesupport_templates_callback("\n<%def name=\"conversation\">\n    <div class=\"oe_im_chatview_header\">\n        <img src=\"${toUrl('../img/green.png')}\" class=\"oe_im_chatview_online\"/>\n        ${widget.user.get('name') || 'You'}\n        <button class=\"oe_im_chatview_close\">\u00d7</button>\n    </div>\n    <div class=\"oe_im_chatview_disconnected\">\n        ${widget.user.get(\"name\") + \" is offline. He/She will receive your messages on his/her next connection.\"}\n    </div>\n    <div class=\"oe_im_chatview_content\">\n        <div></div>\n    </div>\n    <div class=\"oe_im_chatview_footer\">\n        <input class=\"oe_im_chatview_input\" placeholder=\"${widget.inputPlaceholder}\" />\n    </div>\n</%def>\n\n<%def name=\"conversation_bubble\">\n    <div class=\"oe_im_chatview_bubble\">\n        <div class=\"oe_im_chatview_clip\">\n            <img class=\"oe_im_chatview_avatar\" src=\"${user.get('image_url')}\"/>\n        </div>\n        <div class=\"oe_im_chatview_from\">${user.get('name') || 'You'}</div>\n        <div class=\"oe_im_chatview_bubble_list\">\n            % _.each(items, function(item) {\n                <div class=\"oe_im_chatview_bubble_item\">${item}</div>\n            % });\n        </div>\n        <div class=\"oe_im_chatview_time\">${time}</div>\n    </div>\n</%def>\n\n<%def name=\"chatButton\">\n    ${widget.text}\n</%def>");
diff --git a/addons/im_livechat/static/ext/static/js/nova.js b/addons/im_livechat/static/ext/static/js/nova.js
new file mode 100644
index 00000000000..eee00741fb6
--- /dev/null
+++ b/addons/im_livechat/static/ext/static/js/nova.js
@@ -0,0 +1,988 @@
+/*
+Copyright (c) 2012, Nicolas Vanhoren
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met: 
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer. 
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution. 
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+(function() {
+
+if (typeof(define) !== "undefined") { // requirejs
+    define(["jquery", "underscore"], nova_declare);
+} else if (typeof(exports) !== "undefined") { // node
+    var _ = require("underscore")
+    _.extend(exports, nova_declare(null, _));
+} else { // define global variable 'nova'
+    nova = nova_declare($, _);
+}
+
+function nova_declare($, _) {
+    var nova = {};
+    nova.internal = {};
+
+    /*
+     * Modified Armin Ronacher's Classy library.
+     *
+     * Defines The Class object. That object can be used to define and inherit classes using
+     * the $extend() method.
+     *
+     * Example:
+     *
+     * var Person = nova.Class.$extend({
+     *  __init__: function(isDancing){
+     *     this.dancing = isDancing;
+     *   },
+     *   dance: function(){
+     *     return this.dancing;
+     *   }
+     * });
+     *
+     * The __init__() method act as a constructor. This class can be instancied this way:
+     *
+     * var person = new Person(true);
+     * person.dance();
+     *
+     * The Person class can also be extended again:
+     *
+     * var Ninja = Person.$extend({
+     *   __init__: function(){
+     *     this.$super( false );
+     *   },
+     *   dance: function(){
+     *     // Call the inherited version of dance()
+     *     return this.$super();
+     *   },
+     *   swingSword: function(){
+     *     return true;
+     *   }
+     * });
+     *
+     * When extending a class, each re-defined method can use this.$super() to call the previous
+     * implementation of that method.
+     */
+    /**
+    * Classy - classy classes for JavaScript
+    *
+    * :copyright: (c) 2011 by Armin Ronacher. 
+    * :license: BSD.
+    */
+    (function(){
+        var
+            context = this,
+            disable_constructor = false;
+
+        /* we check if $super is in use by a class if we can.  But first we have to
+         check if the JavaScript interpreter supports that.  This also matches
+         to false positives later, but that does not do any harm besides slightly
+         slowing calls down. */
+        var probe_super = (function(){this.$super();}).toString().indexOf('$super') > 0;
+        function usesSuper(obj) {
+            return !probe_super || /\B\$super\b/.test(obj.toString());
+        }
+
+        /* helper function to set the attribute of something to a value or
+         removes it if the value is undefined. */
+        function setOrUnset(obj, key, value) {
+            if (value === undefined)
+                delete obj[key];
+            else
+                obj[key] = value;
+        }
+
+        /* gets the own property of an object */
+        function getOwnProperty(obj, name) {
+            return Object.prototype.hasOwnProperty.call(obj, name)
+                ? obj[name] : undefined;
+        }
+
+        /* instanciate a class without calling the constructor */
+        function cheapNew(cls) {
+            disable_constructor = true;
+            var rv = new cls;
+            disable_constructor = false;
+            return rv;
+        }
+
+        /* the base class we export */
+        var Class = function() {};
+
+        /* extend functionality */
+        Class.$extend = function(properties) {
+            var super_prototype = this.prototype;
+
+            /* disable constructors and instanciate prototype.  Because the
+               prototype can't raise an exception when created, we are safe
+               without a try/finally here. */
+            var prototype = cheapNew(this);
+
+            /* copy all properties of the includes over if there are any */
+            prototype.__mixin_ids = _.clone(prototype.__mixin_ids || {});
+            if (properties.__include__)
+                for (var i = 0, n = properties.__include__.length; i != n; ++i) {
+                    var mixin = properties.__include__[i];
+                    if (mixin instanceof nova.Mixin) {
+                        _.extend(prototype.__mixin_ids, mixin.__mixin_ids);
+                        mixin = mixin.__mixin_properties;
+                    }
+                    for (var name in mixin) {
+                        var value = getOwnProperty(mixin, name);
+                        if (value !== undefined)
+                            prototype[name] = mixin[name];
+                    }
+                }
+
+            /* copy class vars from the superclass */
+            properties.__classvars__ = properties.__classvars__ || {};
+            if (prototype.__classvars__)
+                for (var key in prototype.__classvars__)
+                    if (!properties.__classvars__[key]) {
+                        var value = getOwnProperty(prototype.__classvars__, key);
+                        properties.__classvars__[key] = value;
+                    }
+
+            /* copy all properties over to the new prototype */
+            for (var name in properties) {
+                var value = getOwnProperty(properties, name);
+                if (name === '__include__' ||
+                    value === undefined)
+                    continue;
+
+                prototype[name] = typeof value === 'function' && usesSuper(value) ?
+                    (function(meth, name) {
+                        return function() {
+                            var old_super = getOwnProperty(this, '$super');
+                            this.$super = super_prototype[name];
+                            try {
+                                return meth.apply(this, arguments);
+                            }
+                            finally {
+                                setOrUnset(this, '$super', old_super);
+                            }
+                        };
+                    })(value, name) : value
+            }
+
+            var class_init = this.__class_init__ || function() {};
+            var p_class_init = prototype.__class_init__ || function() {};
+            delete prototype.__class_init__;
+            var n_class_init = function() {
+                class_init.apply(null, arguments);
+                p_class_init.apply(null, arguments);
+            }
+            n_class_init(prototype);
+
+            /* dummy constructor */
+            var instance = function() {
+                if (disable_constructor)
+                    return;
+                var proper_this = context === this ? cheapNew(arguments.callee) : this;
+                if (proper_this.__init__)
+                    proper_this.__init__.apply(proper_this, arguments);
+                proper_this.$class = instance;
+                return proper_this;
+            }
+
+            /* copy all class vars over of any */
+            for (var key in properties.__classvars__) {
+                var value = getOwnProperty(properties.__classvars__, key);
+                if (value !== undefined)
+                    instance[key] = value;
+            }
+
+            /* copy prototype and constructor over, reattach $extend and
+               return the class */
+            instance.prototype = prototype;
+            instance.constructor = instance;
+            instance.$extend = this.$extend;
+            instance.$withData = this.$withData;
+            instance.__class_init__ = n_class_init;
+            return instance;
+        };
+
+        /* instanciate with data functionality */
+        Class.$withData = function(data) {
+            var rv = cheapNew(this);
+            for (var key in data) {
+                var value = getOwnProperty(data, key);
+                if (value !== undefined)
+                    rv[key] = value;
+            }
+            return rv;
+        };
+
+        /* export the class */
+        this.Class = Class;
+    }).call(nova);
+    // end of Armin Ronacher's code
+
+    var mixinId = 1;
+    nova.Mixin = nova.Class.$extend({
+        __init__: function() {
+            this.__mixin_properties = {};
+            this.__mixin_id = mixinId;
+            mixinId++;
+            this.__mixin_ids = {};
+            this.__mixin_ids[this.__mixin_id] = true;
+            _.each(_.toArray(arguments), function(el) {
+                if (el instanceof nova.Mixin) {
+                    _.extend(this.__mixin_properties, el.__mixin_properties);
+                    _.extend(this.__mixin_ids, el.__mixin_ids);
+                } else { // object
+                    _.extend(this.__mixin_properties, el)
+                }
+            }, this);
+            _.extend(this, this.__mixin_properties);
+        }
+    });
+
+    nova.Interface = nova.Mixin.$extend({
+        __init__: function() {
+            var lst = [];
+            _.each(_.toArray(arguments), function(el) {
+                if (el instanceof nova.Interface) {
+                    lst.push(el);
+                } else if (el instanceof nova.Mixin) {
+                    var tmp = new nova.Interface(el.__mixin_properties);
+                    tmp.__mixin_ids = el.__mixin_ids;
+                    lst.push(tmp);
+                } else { // object
+                    var nprops = {};
+                    _.each(el, function(v, k) {
+                        nprops[k] = function() {
+                            throw new nova.NotImplementedError();
+                        };
+                    });
+                    lst.push(nprops);
+                }
+            });
+            this.$super.apply(this, lst);
+        }
+    });
+
+    nova.hasMixin = function(object, mixin) {
+        if (! object)
+            return false;
+        return (object.__mixin_ids || {})[mixin.__mixin_id] === true;
+    };
+
+    var ErrorBase = function() {
+    };
+    ErrorBase.prototype = new Error();
+    ErrorBase.$extend = nova.Class.$extend;
+    ErrorBase.$withData = nova.Class.$withData;
+
+    nova.Error = ErrorBase.$extend({
+        name: "nova.Error",
+        defaultMessage: "",
+        __init__: function(message) {
+            this.message = message || this.defaultMessage;
+        }
+    });
+
+    nova.NotImplementedError = nova.Error.$extend({
+        name: "nova.NotImplementedError",
+        defaultMessage: "This method is not implemented"
+    });
+
+    nova.InvalidArgumentError = nova.Error.$extend({
+        name: "nova.InvalidArgumentError"
+    });
+
+    /**
+     * Mixin to express the concept of destroying an object.
+     * When an object is destroyed, it should release any resource
+     * it could have reserved before.
+     */
+    nova.Destroyable = new nova.Mixin({
+        __init__: function() {
+            this.__destroyableDestroyed = false;
+        },
+        /**
+         * Returns true if destroy() was called on the current object.
+         */
+        isDestroyed : function() {
+            return this.__destroyableDestroyed;
+        },
+        /**
+         * Inform the object it should destroy itself, releasing any
+         * resource it could have reserved.
+         */
+        destroy : function() {
+            this.__destroyableDestroyed = true;
+        }
+    });
+
+    /**
+     * Mixin to structure objects' life-cycles folowing a parent-children
+     * relationship. Each object can a have a parent and multiple children.
+     * When an object is destroyed, all its children are destroyed too.
+     */
+    nova.Parented = new nova.Mixin(nova.Destroyable, {
+        __parentedMixin : true,
+        __init__: function() {
+            nova.Destroyable.__init__.apply(this);
+            this.__parentedChildren = [];
+            this.__parentedParent = null;
+        },
+        /**
+         * Set the parent of the current object. When calling this method, the
+         * parent will also be informed and will return the current object
+         * when its getChildren() method is called. If the current object did
+         * already have a parent, it is unregistered before, which means the
+         * previous parent will not return the current object anymore when its
+         * getChildren() method is called.
+         */
+        setParent : function(parent) {
+            if (this.getParent()) {
+                if (this.getParent().__parentedMixin) {
+                    this.getParent().__parentedChildren = _.without(this
+                            .getParent().getChildren(), this);
+                }
+            }
+            this.__parentedParent = parent;
+            if (parent && parent.__parentedMixin) {
+                parent.__parentedChildren.push(this);
+            }
+        },
+        /**
+         * Return the current parent of the object (or null).
+         */
+        getParent : function() {
+            return this.__parentedParent;
+        },
+        /**
+         * Return a list of the children of the current object.
+         */
+        getChildren : function() {
+            return _.clone(this.__parentedChildren);
+        },
+        destroy : function() {
+            _.each(this.getChildren(), function(el) {
+                el.destroy();
+            });
+            this.setParent(undefined);
+            nova.Destroyable.destroy.apply(this);
+        }
+    });
+
+    /*
+     * Yes, we steal Backbone's events :)
+     * 
+     * This class just handle the dispatching of events, it is not meant to be extended,
+     * nor used directly. All integration with parenting and automatic unregistration of
+     * events is done in the mixin EventDispatcher.
+     */
+    // (c) 2010-2012 Jeremy Ashkenas, DocumentCloud Inc.
+    // Backbone may be freely distributed under the MIT license.
+    // For all details and documentation:
+    // http://backbonejs.org
+    nova.internal.Events = nova.Class.$extend({
+        on : function(events, callback, context) {
+            var ev;
+            events = events.split(/\s+/);
+            var calls = this._callbacks || (this._callbacks = {});
+            while (ev = events.shift()) {
+                var list = calls[ev] || (calls[ev] = {});
+                var tail = list.tail || (list.tail = list.next = {});
+                tail.callback = callback;
+                tail.context = context;
+                list.tail = tail.next = {};
+            }
+            return this;
+        },
+        off : function(events, callback, context) {
+            var ev, calls, node;
+            if (!events) {
+                delete this._callbacks;
+            } else if (calls = this._callbacks) {
+                events = events.split(/\s+/);
+                while (ev = events.shift()) {
+                    node = calls[ev];
+                    delete calls[ev];
+                    if (!callback || !node)
+                        continue;
+                    while ((node = node.next) && node.next) {
+                        if (node.callback === callback
+                                && (!context || node.context === context))
+                            continue;
+                        this.on(ev, node.callback, node.context);
+                    }
+                }
+            }
+            return this;
+        },
+        callbackList: function() {
+            var lst = [];
+            _.each(this._callbacks || {}, function(el, eventName) {
+                var node = el;
+                while ((node = node.next) && node.next) {
+                    lst.push([eventName, node.callback, node.context]);
+                }
+            });
+            return lst;
+        },
+        trigger : function(events) {
+            var event, node, calls, tail, args, all, rest;
+            if (!(calls = this._callbacks))
+                return this;
+            all = calls['all'];
+            (events = events.split(/\s+/)).push(null);
+            // Save references to the current heads & tails.
+            while (event = events.shift()) {
+                if (all)
+                    events.push({
+                        next : all.next,
+                        tail : all.tail,
+                        event : event
+                    });
+                if (!(node = calls[event]))
+                    continue;
+                events.push({
+                    next : node.next,
+                    tail : node.tail
+                });
+            }
+            rest = Array.prototype.slice.call(arguments, 1);
+            while (node = events.pop()) {
+                tail = node.tail;
+                args = node.event ? [ node.event ].concat(rest) : rest;
+                while ((node = node.next) !== tail) {
+                    node.callback.apply(node.context || this, args);
+                }
+            }
+            return this;
+        }
+    });
+    // end of Backbone's events class
+    
+    nova.EventDispatcher = new nova.Mixin(nova.Parented, {
+        __eventDispatcherMixin: true,
+        __init__: function() {
+            nova.Parented.__init__.apply(this);
+            this.__edispatcherEvents = new nova.internal.Events();
+            this.__edispatcherRegisteredEvents = [];
+        },
+        on: function(events, dest, func) {
+            var self = this;
+            events = events.split(/\s+/);
+            _.each(events, function(eventName) {
+                self.__edispatcherEvents.on(eventName, func, dest);
+                if (dest && dest.__eventDispatcherMixin) {
+                    dest.__edispatcherRegisteredEvents.push({name: eventName, func: func, source: self});
+                }
+            });
+            return this;
+        },
+        off: function(events, dest, func) {
+            var self = this;
+            events = events.split(/\s+/);
+            _.each(events, function(eventName) {
+                self.__edispatcherEvents.off(eventName, func, dest);
+                if (dest && dest.__eventDispatcherMixin) {
+                    dest.__edispatcherRegisteredEvents = _.filter(dest.__edispatcherRegisteredEvents, function(el) {
+                        return !(el.name === eventName && el.func === func && el.source === self);
+                    });
+                }
+            });
+            return this;
+        },
+        trigger: function(events) {
+            this.__edispatcherEvents.trigger.apply(this.__edispatcherEvents, arguments);
+            return this;
+        },
+        destroy: function() {
+            var self = this;
+            _.each(this.__edispatcherRegisteredEvents, function(event) {
+                event.source.__edispatcherEvents.off(event.name, event.func, self);
+            });
+            this.__edispatcherRegisteredEvents = [];
+            _.each(this.__edispatcherEvents.callbackList(), function(cal) {
+                this.off(cal[0], cal[2], cal[1]);
+            }, this);
+            this.__edispatcherEvents.off();
+            nova.Parented.destroy.apply(this);
+        }
+    });
+    
+    nova.Properties = new nova.Mixin(nova.EventDispatcher, {
+        __class_init__: function(proto) {
+            var props = {};
+            _.each(proto.__properties || {}, function(v, k) {
+                props[k] = _.clone(v);
+            });
+            _.each(proto, function(v, k) {
+                if (typeof v === "function") {
+                    var res = /^((?:get)|(?:set))([A-Z]\w*)$/.exec(k);
+                    if (! res)
+                        return;
+                    var name = res[2][0].toLowerCase() + res[2].slice(1);
+                    var prop = props[name] || (props[name] = {});
+                    prop[res[1]] = v;
+                }
+            });
+            proto.__properties = props;
+        },
+        __init__: function() {
+            nova.EventDispatcher.__init__.apply(this);
+            this.__dynamicProperties = {};
+        },
+        set: function(arg1, arg2) {
+            var self = this;
+            var map;
+            if (typeof arg1 === "string") {
+                map = {};
+                map[arg1] = arg2;
+            } else {
+                map = arg1;
+            }
+            var tmp_set = this.__props_setting;
+            this.__props_setting = false;
+            _.each(map, function(val, key) {
+                var prop = self.__properties[key];
+                if (prop) {
+                    if (! prop.set)
+                        throw new nova.InvalidArgumentError("Property " + key + " does not have a setter method.");
+                    prop.set.call(self, val);
+                } else {
+                    self.fallbackSet(key, val);
+                }
+            });
+            this.__props_setting = tmp_set;
+            if (! this.__props_setting && this.__props_setted) {
+                this.__props_setted = false;
+                self.trigger("change", self);
+            }
+        },
+        get: function(key) {
+            var prop = this.__properties[key];
+            if (prop) {
+                if (! prop.get)
+                    throw new nova.InvalidArgumentError("Property " + key + " does not have a getter method.");
+                return prop.get.call(this);
+            } else {
+                return this.fallbackGet(key);
+            }
+        },
+        fallbackSet: function(key, val) {
+            throw new nova.InvalidArgumentError("Property " + key + " is not defined.");
+        },
+        fallbackGet: function(key) {
+            throw new nova.InvalidArgumentError("Property " + key + " is not defined.");
+        },
+        trigger: function(name) {
+            nova.EventDispatcher.trigger.apply(this, arguments);
+            if (/(\s|^)change\:.*/.exec(name)) {
+                if (! this.__props_setting)
+                    this.trigger("change");
+                else
+                    this.__props_setted = true;
+            }
+        }
+    });
+
+    nova.DynamicProperties = new nova.Mixin(nova.Properties, {
+        __init__: function() {
+            nova.Properties.__init__.apply(this);
+            this.__dynamicProperties = {};
+        },
+        fallbackSet: function(key, val) {
+            var tmp = this.__dynamicProperties[key];
+            if (tmp === val)
+                return;
+            this.__dynamicProperties[key] = val;
+            this.trigger("change:" + key, this, {
+                oldValue: tmp,
+                newValue: val
+            });
+        },
+        fallbackGet: function(key) {
+            return this.__dynamicProperties[key];
+        }
+    });
+    
+    nova.Widget = nova.Class.$extend({
+        __include__ : [nova.DynamicProperties],
+        tagName: 'div',
+        className: '',
+        attributes: {},
+        events: {},
+        __init__: function(parent) {
+            nova.Properties.__init__.apply(this);
+            this.__widget_element = $(document.createElement(this.tagName));
+            this.$().addClass(this.className);
+            _.each(this.attributes, function(val, key) {
+                this.$().attr(key, val);
+            }, this);
+            _.each(this.events, function(val, key) {
+                key = key.split(" ");
+                val = _.bind(typeof val === "string" ? this[val] : val, this);
+                if (key.length > 1) {
+                    this.$().on(key[0], key[1], val);
+                } else {
+                    this.$().on(key[0], val);
+                }
+            }, this);
+    
+            this.setParent(parent);
+        },
+        $: function(attr) {
+            if (attr)
+                return this.__widget_element.find.apply(this.__widget_element, arguments);
+            else
+                return this.__widget_element;
+        },
+        /**
+         * Destroys the current widget, also destroys all its children before destroying itself.
+         */
+        destroy: function() {
+            _.each(this.getChildren(), function(el) {
+                el.destroy();
+            });
+            this.$().remove();
+            nova.Properties.destroy.apply(this);
+        },
+        /**
+         * Renders the current widget and appends it to the given jQuery object or Widget.
+         *
+         * @param target A jQuery object or a Widget instance.
+         */
+        appendTo: function(target) {
+            this.$().appendTo(target);
+            return this.render();
+        },
+        /**
+         * Renders the current widget and prepends it to the given jQuery object or Widget.
+         *
+         * @param target A jQuery object or a Widget instance.
+         */
+        prependTo: function(target) {
+            this.$().prependTo(target);
+            return this.render();
+        },
+        /**
+         * Renders the current widget and inserts it after to the given jQuery object or Widget.
+         *
+         * @param target A jQuery object or a Widget instance.
+         */
+        insertAfter: function(target) {
+            this.$().insertAfter(target);
+            return this.render();
+        },
+        /**
+         * Renders the current widget and inserts it before to the given jQuery object or Widget.
+         *
+         * @param target A jQuery object or a Widget instance.
+         */
+        insertBefore: function(target) {
+            this.$().insertBefore(target);
+            return this.render();
+        },
+        /**
+         * Renders the current widget and replaces the given jQuery object.
+         *
+         * @param target A jQuery object or a Widget instance.
+         */
+        replace: function(target) {
+            this.$().replace(target);
+            return this.render();
+        },
+        /**
+         * This is the method to implement to render the Widget.
+         */
+        render: function() {}
+    });
+
+    /*
+        Nova Template Engine
+    */
+    var escape_ = function(text) {
+        return JSON.stringify(text);
+    }
+    var indent_ = function(txt) {
+        var tmp = _.map(txt.split("\n"), function(x) { return "    " + x; });
+        tmp.pop();
+        tmp.push("");
+        return tmp.join("\n");
+    };
+    var tparams = {
+        def_begin: /<%\s*def\s+(?:name=(?:(?:"(.+?)")|(?:'(.+?)')))\s*>/g,
+        def_end: /<\/%\s*def\s*>/g,
+        comment_multi_begin: /<%\s*doc\s*>/g,
+        comment_multi_end: /<\/%\s*doc\s*>/g,
+        eval_long_begin: /<%/g,
+        eval_long_end: /%>/g,
+        eval_short_begin: /(?:^|\n)[[ \t]*%(?!{)/g,
+        eval_short_end: /\n|$/g,
+        escape_begin: /\${/g,
+        interpolate_begin: /%{/g,
+        comment_begin: /##/g,
+        comment_end: /\n|$/g
+    };
+    // /<%\s*def\s+(?:name=(?:"(.+?)"))\s*%>([\s\S]*?)<%\s*def\s*%>/g
+    var allbegin = new RegExp(
+        "((?:\\\\)*)(" +
+        "(" + tparams.def_begin.source + ")|" +
+        "(" + tparams.def_end.source + ")|" +
+        "(" + tparams.comment_multi_begin.source + ")|" +
+        "(" + tparams.eval_long_begin.source + ")|" +
+        "(" + tparams.interpolate_begin.source + ")|" +
+        "(" + tparams.eval_short_begin.source + ")|" +
+        "(" + tparams.escape_begin.source + ")|" +
+        "(" + tparams.comment_begin.source + ")" +
+        ")"
+    , "g");
+    allbegin.global = true;
+    var regexes = {
+        slashes: 1,
+        match: 2,
+        def_begin: 3,
+        def_name1: 4,
+        def_name2: 5,
+        def_end: 6,
+        comment_multi_begin: 7,
+        eval_long: 8,
+        interpolate: 9,
+        eval_short: 10,
+        escape: 11,
+        comment: 12
+    };
+    var regex_count = 4;
+
+    var compileTemplate = function(text, options) {
+        options = _.extend({start: 0, indent: true}, options);
+        start = options.start;
+        var source = "";
+        var current = start;
+        allbegin.lastIndex = current;
+        var text_end = text.length;
+        var restart = end;
+        var found;
+        var functions = [];
+        var indent = options.indent ? indent_ : function (txt) { return txt; };
+        var rmWhite = options.removeWhitespaces ? function(txt) {
+            if (! txt)
+                return txt;
+            txt = _.map(txt.split("\n"), function(x) { return x.trim() });
+            var last = txt.pop();
+            txt = _.reject(txt, function(x) { return !x });
+            txt.push(last);
+            return txt.join("\n") || "\n";
+        } : function(x) { return x };
+        while (found = allbegin.exec(text)) {
+            var to_add = rmWhite(text.slice(current, found.index));
+            source += to_add ? "__p+=" + escape_(to_add) + ";\n" : '';
+            current = found.index;
+
+            // slash escaping handling
+            var slashes = found[regexes.slashes] || "";
+            var nbr = slashes.length;
+            var nslash = slashes.slice(0, Math.floor(nbr / 2));
+            source += nbr !== 0 ? "__p+=" + escape_(nslash) + ";\n" : "";
+            if (nbr % 2 !== 0) {
+                source += "__p+=" + escape_(found[regexes.match]) + ";\n";
+                current = found.index + found[0].length;
+                allbegin.lastIndex = current;
+                continue;
+            }
+
+            if (found[regexes.def_begin]) {
+                var sub_compile = compileTemplate(text, _.extend({}, options, {start: found.index + found[0].length}));
+                var name = (found[regexes.def_name1] || found[regexes.def_name2]);
+                source += "var " + name  + " = function(context) {\n" + indent(sub_compile.header + sub_compile.source
+                    + sub_compile.footer) + "}\n";
+                functions.push(name);
+                current = sub_compile.end;
+            } else if (found[regexes.def_end]) {
+                text_end = found.index;
+                restart = found.index + found[0].length;
+                break;
+            } else if (found[regexes.comment_multi_begin]) {
+                tparams.comment_multi_end.lastIndex = found.index + found[0].length;
+                var end = tparams.comment_multi_end.exec(text);
+                if (!end)
+                    throw new Error("<%doc> without corresponding </%doc>");
+                current = end.index + end[0].length;
+            } else if (found[regexes.eval_long]) {
+                tparams.eval_long_end.lastIndex = found.index + found[0].length;
+                var end = tparams.eval_long_end.exec(text);
+                if (!end)
+                    throw new Error("<% without matching %>");
+                var code = text.slice(found.index + found[0].length, end.index);
+                code = _(code.split("\n")).chain().map(function(x) { return x.trim() })
+                    .reject(function(x) { return !x }).value().join("\n");
+                source += code + "\n";
+                current = end.index + end[0].length;
+            } else if (found[regexes.interpolate]) {
+                var braces = /{|}/g;
+                braces.lastIndex = found.index + found[0].length;
+                var b_count = 1;
+                var brace;
+                while (brace = braces.exec(text)) {
+                    if (brace[0] === "{")
+                        b_count++;
+                    else {
+                        b_count--;
+                    }
+                    if (b_count === 0)
+                        break;
+                }
+                if (b_count !== 0)
+                    throw new Error("%{ without a matching }");
+                source += "__p+=" + text.slice(found.index + found[0].length, brace.index) + ";\n"
+                current = brace.index + brace[0].length;
+            } else if (found[regexes.eval_short]) {
+                tparams.eval_short_end.lastIndex = found.index + found[0].length;
+                var end = tparams.eval_short_end.exec(text);
+                if (!end)
+                    throw new Error("impossible state!!");
+                source += text.slice(found.index + found[0].length, end.index).trim() + "\n";
+                current = end.index;
+            } else if (found[regexes.escape]) {
+                var braces = /{|}/g;
+                braces.lastIndex = found.index + found[0].length;
+                var b_count = 1;
+                var brace;
+                while (brace = braces.exec(text)) {
+                    if (brace[0] === "{")
+                        b_count++;
+                    else {
+                        b_count--;
+                    }
+                    if (b_count === 0)
+                        break;
+                }
+                if (b_count !== 0)
+                    throw new Error("${ without a matching }");
+                source += "__p+=_.escape(" + text.slice(found.index + found[0].length, brace.index) + ");\n"
+                current = brace.index + brace[0].length;
+            } else { // comment 
+                tparams.comment_end.lastIndex = found.index + found[0].length;
+                var end = tparams.comment_end.exec(text);
+                if (!end)
+                    throw new Error("impossible state!!");
+                current = end.index + end[0].length;
+            }
+            allbegin.lastIndex = current;
+        }
+        var to_add = rmWhite(text.slice(current, text_end));
+        source += to_add ? "__p+=" + escape_(to_add) + ";\n" : "";
+
+        var header = "var __p = ''; var print = function() { __p+=Array.prototype.join.call(arguments, '') };\n" +
+          "with (context || {}) {\n";
+        var footer = "}\nreturn __p;\n";
+        source = indent(source);
+
+        return {
+            header: header,
+            source: source,
+            footer: footer,
+            end: restart,
+            functions: functions,
+        };
+    };
+
+    nova.TemplateEngine = nova.Class.$extend({
+        __init__: function() {
+            this.resetEnvironment();
+            this.options = {
+                includeInDom: $ ? true : false,
+                indent: true,
+                removeWhitespaces: true,
+            };
+        },
+        loadFile: function(filename) {
+            var self = this;
+            return $.get(filename).pipe(function(content) {
+                return self.loadFileContent(content);
+            });
+        },
+        loadFileContent: function(file_content) {
+            var code = this.compileFile(file_content);
+
+            if (this.options.includeInDom) {
+                var varname = _.uniqueId("novajstemplate");
+                var previous = window[varname];
+                code = "window." + varname + " = " + code + ";";
+                var def = $.Deferred();
+                var script   = document.createElement("script");
+                script.type  = "text/javascript";
+                script.text  = code;
+                $("head")[0].appendChild(script);
+                $(script).ready(function() {
+                    def.resolve();
+                });
+                def.then(_.bind(function() {
+                    var tmp = window[varname];
+                    window[varname] = previous;
+                    this.includeTemplates(tmp);
+                }, this));
+                return def;
+            } else {
+                console.log("return (" + code + ")(context);");
+                return this.includeTemplates(new Function('context', "return (" + code + ")(context);"));
+            }
+        },
+        compileFile: function(file_content) {
+            var result = compileTemplate(file_content, _.extend({}, this.options));
+            var to_append = "";
+            _.each(result.functions, function(name) {
+                to_append += name + ": " + name + ",\n";
+            }, this);
+            to_append = this.options.indent ? indent_(to_append) : to_append;
+            to_append = "return {\n" + to_append + "};\n";
+            to_append = this.options.indent ? indent_(to_append) : to_append;
+            var code = "function(context) {\n" + result.header +
+                result.source + to_append + result.footer + "}\n";
+            return code;
+        },
+        includeTemplates: function(fct) {
+            var add = _.extend({engine: this}, this._env);
+            var functions = fct(add);
+            _.each(functions, function(func, name) {
+                if (this[name])
+                    throw new Error("The template '" + name + "' is already defined");
+                this[name] = func;
+            }, this);
+        },
+        buildTemplate: function(text) {
+            var comp = compileTemplate(text, _.extend({}, this.options));
+            var result = comp.header + comp.source + comp.footer;
+            var add = _.extend({engine: this}, this._env);
+            var func = new Function('context', result);
+            return function(data) {
+                return func.call(this, _.extend(add, data));
+            };
+        },
+        eval: function(text, context) {
+            return this.buildTemplate(text)(context);
+        },
+        resetEnvironment: function(nenv) {
+            this._env = {_: _};
+            this.extendEnvironment(nenv);
+        },
+        extendEnvironment: function(env) {
+            _.extend(this._env, env || {});
+        },
+    });
+
+    return nova;
+};
+})();
diff --git a/addons/im_livechat/static/ext/static/js/oeclient.js b/addons/im_livechat/static/ext/static/js/oeclient.js
new file mode 100644
index 00000000000..b3192b786e2
--- /dev/null
+++ b/addons/im_livechat/static/ext/static/js/oeclient.js
@@ -0,0 +1,362 @@
+/*
+Copyright (c) 2013, OpenERP
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met: 
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer. 
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution. 
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+define(["underscore", "jquery", "nova"], function(_, $, nova) {
+
+    var oeclient = {};
+
+    var genericJsonRPC = function(fct_name, params, fct) {
+        var data = {
+            jsonrpc: "2.0",
+            method: fct_name,
+            params: params,
+            id: Math.floor(Math.random()* (1000*1000*1000)),
+        };
+        return fct(data).pipe(function(result) {
+            if (result.error !== undefined) {
+                console.error("Server application error", result.error);
+                return $.Deferred().reject("server", result.error);
+            } else {
+                return result.result;
+            }
+        }, function() {
+            console.error("JsonRPC communication error", _.toArray(arguments));
+            var def = $.Deferred();
+            return def.reject.apply(def, ["communication"].concat(_.toArray(arguments)));
+        });
+    };
+
+    oeclient.jsonRpc = function(url, fct_name, params, settings) {
+        return genericJsonRPC(fct_name, params, function(data) {
+            return $.ajax(url, _.extend({}, settings, {
+                url: url,
+                dataType: 'json',
+                type: 'POST',
+                data: JSON.stringify(data),
+                contentType: 'application/json',
+            }));
+        });
+    };
+
+    oeclient.jsonpRpc = function(url, fct_name, params, settings) {
+        return genericJsonRPC(fct_name, params, function(data) {
+            return $.ajax(url, _.extend({}, settings, {
+                url: url,
+                dataType: 'jsonp',
+                jsonp: 'jsonp',
+                type: 'GET',
+                cache: false,
+                data: {r: JSON.stringify(data)},
+            }));
+        });
+    };
+
+    oeclient.Connector = nova.Class.$extend({
+        getService: function(serviceName) {
+            return new oeclient.Service(this, serviceName);
+        },
+    });
+
+    oeclient.JsonRPCConnector = oeclient.Connector.$extend({
+        __init__: function(url) {
+            this.url = url;
+        },
+        call: function(sub_url, content) {
+            return oeclient.jsonRpc(this.url + sub_url, "call", content);
+        },
+        send: function(serviceName, method, args) {
+            return this.call("/jsonrpc", {"service": serviceName, "method": method, "args": args});
+        },
+    });
+
+    oeclient.JsonpRPCConnector = oeclient.JsonRPCConnector.$extend({
+        call: function(sub_url, content) {
+            return oeclient.jsonpRpc(this.url + sub_url, "call", content);
+        },
+    });
+
+    oeclient.Service = nova.Class.$extend({
+        __init__: function(connector, serviceName) {
+            this.connector = connector;
+            this.serviceName = serviceName;
+        },
+        call: function(method, args) {
+            return this.connector.send(this.serviceName, method, args);
+        },
+    });
+
+    oeclient.AuthenticationError = nova.Error.$extend({
+        name: "oeclient.AuthenticationError",
+        defaultMessage: "An error occured during authentication."
+    });
+
+    oeclient.Connection = nova.Class.$extend({
+        __init__: function(connector, database, login, password, userId) {
+            this.connector = connector;
+            this.setLoginInfo(database, login, password, userId);
+            this.userContext = null;
+        },
+        setLoginInfo: function(database, login, password, userId) {
+            this.database = database;
+            this.login = login;
+            this.password = password;
+            this.userId = userId;
+        },
+        checkLogin: function(force) {
+            force = force === undefined ? true: force;
+            if (this.userId && ! force)
+                return $.when();
+
+            if (! this.database || ! this.login || ! this.password)
+                throw new oeclient.AuthenticationError();
+
+            return this.getService("common").call("login", [this.database, this.login, this.password])
+                    .then(_.bind(function(result) {
+                this.userId = result;
+                if (! this.userId) {
+                    console.error("Authentication failure");
+                    return $.Deferred().reject({message:"Authentication failure"});
+                }
+            }, this));
+        },
+        getUserContext: function() {
+            if (! this.userContext) {
+                return this.getModel("res.users").call("context_get").then(_.bind(function(result) {
+                    this.userContext = result;
+                    return this.userContext;
+                }, this));
+            }
+            return $.when(this.userContext);
+        },
+        getModel: function(modelName) {
+            return new oeclient.Model(this, modelName);
+        },
+        getService: function(serviceName) {
+            return this.connector.getService(serviceName);
+        },
+    });
+
+    oeclient.Model = nova.Class.$extend({
+        __init__: function(connection, modelName) {
+            this.connection = connection;
+            this.modelName = modelName;
+        },
+        call: function(method, args, kw) {
+            return this.connection.checkLogin().then(_.bind(function() {
+                return this.connection.getService("object").call("execute_kw", [
+                    this.connection.database,
+                    this.connection.userId,
+                    this.connection.password,
+                    this.modelName,
+                    method,
+                    args || [],
+                    kw || {},
+                ]);
+            }, this));
+        },
+        search_read: function(domain, fields, offset, limit, order, context) {
+            return this.call("search", [domain || [], offset || 0, limit || false, order || false, context || {}]).then(_.bind(function(record_ids) {
+                if (! record_ids) {
+                    return [];
+                }
+                return this.call("read", [record_ids, fields || [], context || {}]).then(function(records) {
+                    var index = {};
+                    _.each(records, function(r) {
+                        index[r.id] = r;
+                    });
+                    var res = [];
+                    _.each(record_ids, function(id) {
+                        if (index[id])
+                            res.push(index[id]);
+                    });
+                    return res;
+                });
+            }, this));
+        },
+    });
+
+    /**
+     * Converts a string to a Date javascript object using OpenERP's
+     * datetime string format (exemple: '2011-12-01 15:12:35').
+     * 
+     * The time zone is assumed to be UTC (standard for OpenERP 6.1)
+     * and will be converted to the browser's time zone.
+     * 
+     * @param {String} str A string representing a datetime.
+     * @returns {Date}
+     */
+    oeclient.str_to_datetime = function(str) {
+        if(!str) {
+            return str;
+        }
+        var regex = /^(\d\d\d\d)-(\d\d)-(\d\d) (\d\d):(\d\d):(\d\d(?:\.\d+)?)$/;
+        var res = regex.exec(str);
+        if ( !res ) {
+            throw new Error("'" + str + "' is not a valid datetime");
+        }
+        var tmp = new Date();
+        tmp.setUTCFullYear(parseFloat(res[1]));
+        tmp.setUTCMonth(parseFloat(res[2]) - 1);
+        tmp.setUTCDate(parseFloat(res[3]));
+        tmp.setUTCHours(parseFloat(res[4]));
+        tmp.setUTCMinutes(parseFloat(res[5]));
+        tmp.setUTCSeconds(parseFloat(res[6]));
+        return tmp;
+    };
+
+    /**
+     * Converts a string to a Date javascript object using OpenERP's
+     * date string format (exemple: '2011-12-01').
+     * 
+     * As a date is not subject to time zones, we assume it should be
+     * represented as a Date javascript object at 00:00:00 in the
+     * time zone of the browser.
+     * 
+     * @param {String} str A string representing a date.
+     * @returns {Date}
+     */
+    oeclient.str_to_date = function(str) {
+        if(!str) {
+            return str;
+        }
+        var regex = /^(\d\d\d\d)-(\d\d)-(\d\d)$/;
+        var res = regex.exec(str);
+        if ( !res ) {
+            throw new Error("'" + str + "' is not a valid date");
+        }
+        var tmp = new Date();
+        tmp.setFullYear(parseFloat(res[1]));
+        tmp.setMonth(parseFloat(res[2]) - 1);
+        tmp.setDate(parseFloat(res[3]));
+        tmp.setHours(0);
+        tmp.setMinutes(0);
+        tmp.setSeconds(0);
+        return tmp;
+    };
+
+    /**
+     * Converts a string to a Date javascript object using OpenERP's
+     * time string format (exemple: '15:12:35').
+     * 
+     * The OpenERP times are supposed to always be naive times. We assume it is
+     * represented using a javascript Date with a date 1 of January 1970 and a
+     * time corresponding to the meant time in the browser's time zone.
+     * 
+     * @param {String} str A string representing a time.
+     * @returns {Date}
+     */
+    oeclient.str_to_time = function(str) {
+        if(!str) {
+            return str;
+        }
+        var regex = /^(\d\d):(\d\d):(\d\d(?:\.\d+)?)$/;
+        var res = regex.exec(str);
+        if ( !res ) {
+            throw new Error("'" + str + "' is not a valid time");
+        }
+        debugger;
+        var tmp = new Date();
+        tmp.setFullYear(1970);
+        tmp.setMonth(0);
+        tmp.setDate(1);
+        tmp.setHours(parseFloat(res[1]));
+        tmp.setMinutes(parseFloat(res[2]));
+        tmp.setSeconds(parseFloat(res[3]));
+        return tmp;
+    };
+
+    /*
+     * Left-pad provided arg 1 with zeroes until reaching size provided by second
+     * argument.
+     *
+     * @param {Number|String} str value to pad
+     * @param {Number} size size to reach on the final padded value
+     * @returns {String} padded string
+     */
+    var zpad = function(str, size) {
+        str = "" + str;
+        return new Array(size - str.length + 1).join('0') + str;
+    };
+
+    /**
+     * Converts a Date javascript object to a string using OpenERP's
+     * datetime string format (exemple: '2011-12-01 15:12:35').
+     * 
+     * The time zone of the Date object is assumed to be the one of the
+     * browser and it will be converted to UTC (standard for OpenERP 6.1).
+     * 
+     * @param {Date} obj
+     * @returns {String} A string representing a datetime.
+     */
+    oeclient.datetime_to_str = function(obj) {
+        if (!obj) {
+            return false;
+        }
+        return zpad(obj.getUTCFullYear(),4) + "-" + zpad(obj.getUTCMonth() + 1,2) + "-"
+             + zpad(obj.getUTCDate(),2) + " " + zpad(obj.getUTCHours(),2) + ":"
+             + zpad(obj.getUTCMinutes(),2) + ":" + zpad(obj.getUTCSeconds(),2);
+    };
+
+    /**
+     * Converts a Date javascript object to a string using OpenERP's
+     * date string format (exemple: '2011-12-01').
+     * 
+     * As a date is not subject to time zones, we assume it should be
+     * represented as a Date javascript object at 00:00:00 in the
+     * time zone of the browser.
+     * 
+     * @param {Date} obj
+     * @returns {String} A string representing a date.
+     */
+    oeclient.date_to_str = function(obj) {
+        if (!obj) {
+            return false;
+        }
+        return zpad(obj.getFullYear(),4) + "-" + zpad(obj.getMonth() + 1,2) + "-"
+             + zpad(obj.getDate(),2);
+    };
+
+    /**
+     * Converts a Date javascript object to a string using OpenERP's
+     * time string format (exemple: '15:12:35').
+     * 
+     * The OpenERP times are supposed to always be naive times. We assume it is
+     * represented using a javascript Date with a date 1 of January 1970 and a
+     * time corresponding to the meant time in the browser's time zone.
+     * 
+     * @param {Date} obj
+     * @returns {String} A string representing a time.
+     */
+    oeclient.time_to_str = function(obj) {
+        if (!obj) {
+            return false;
+        }
+        return zpad(obj.getHours(),2) + ":" + zpad(obj.getMinutes(),2) + ":"
+             + zpad(obj.getSeconds(),2);
+    };
+
+    return oeclient;
+
+});
\ No newline at end of file
diff --git a/addons/im_livechat/static/ext/static/js/require.js b/addons/im_livechat/static/ext/static/js/require.js
new file mode 100644
index 00000000000..f46a9245d97
--- /dev/null
+++ b/addons/im_livechat/static/ext/static/js/require.js
@@ -0,0 +1,1993 @@
+/** vim: et:ts=4:sw=4:sts=4
+ * @license RequireJS 2.1.2 Copyright (c) 2010-2012, The Dojo Foundation All Rights Reserved.
+ * Available via the MIT or new BSD license.
+ * see: http://github.com/jrburke/requirejs for details
+ */
+//Not using strict: uneven strict support in browsers, #392, and causes
+//problems with requirejs.exec()/transpiler plugins that may not be strict.
+/*jslint regexp: true, nomen: true, sloppy: true */
+/*global window, navigator, document, importScripts, jQuery, setTimeout, opera */
+
+var requirejs, require, define;
+(function (global) {
+    var req, s, head, baseElement, dataMain, src,
+        interactiveScript, currentlyAddingScript, mainScript, subPath,
+        version = '2.1.2',
+        commentRegExp = /(\/\*([\s\S]*?)\*\/|([^:]|^)\/\/(.*)$)/mg,
+        cjsRequireRegExp = /[^.]\s*require\s*\(\s*["']([^'"\s]+)["']\s*\)/g,
+        jsSuffixRegExp = /\.js$/,
+        currDirRegExp = /^\.\//,
+        op = Object.prototype,
+        ostring = op.toString,
+        hasOwn = op.hasOwnProperty,
+        ap = Array.prototype,
+        aps = ap.slice,
+        apsp = ap.splice,
+        isBrowser = !!(typeof window !== 'undefined' && navigator && document),
+        isWebWorker = !isBrowser && typeof importScripts !== 'undefined',
+        //PS3 indicates loaded and complete, but need to wait for complete
+        //specifically. Sequence is 'loading', 'loaded', execution,
+        // then 'complete'. The UA check is unfortunate, but not sure how
+        //to feature test w/o causing perf issues.
+        readyRegExp = isBrowser && navigator.platform === 'PLAYSTATION 3' ?
+                      /^complete$/ : /^(complete|loaded)$/,
+        defContextName = '_',
+        //Oh the tragedy, detecting opera. See the usage of isOpera for reason.
+        isOpera = typeof opera !== 'undefined' && opera.toString() === '[object Opera]',
+        contexts = {},
+        cfg = {},
+        globalDefQueue = [],
+        useInteractive = false;
+
+    function isFunction(it) {
+        return ostring.call(it) === '[object Function]';
+    }
+
+    function isArray(it) {
+        return ostring.call(it) === '[object Array]';
+    }
+
+    /**
+     * Helper function for iterating over an array. If the func returns
+     * a true value, it will break out of the loop.
+     */
+    function each(ary, func) {
+        if (ary) {
+            var i;
+            for (i = 0; i < ary.length; i += 1) {
+                if (ary[i] && func(ary[i], i, ary)) {
+                    break;
+                }
+            }
+        }
+    }
+
+    /**
+     * Helper function for iterating over an array backwards. If the func
+     * returns a true value, it will break out of the loop.
+     */
+    function eachReverse(ary, func) {
+        if (ary) {
+            var i;
+            for (i = ary.length - 1; i > -1; i -= 1) {
+                if (ary[i] && func(ary[i], i, ary)) {
+                    break;
+                }
+            }
+        }
+    }
+
+    function hasProp(obj, prop) {
+        return hasOwn.call(obj, prop);
+    }
+
+    function getOwn(obj, prop) {
+        return hasProp(obj, prop) && obj[prop];
+    }
+
+    /**
+     * Cycles over properties in an object and calls a function for each
+     * property value. If the function returns a truthy value, then the
+     * iteration is stopped.
+     */
+    function eachProp(obj, func) {
+        var prop;
+        for (prop in obj) {
+            if (hasProp(obj, prop)) {
+                if (func(obj[prop], prop)) {
+                    break;
+                }
+            }
+        }
+    }
+
+    /**
+     * Simple function to mix in properties from source into target,
+     * but only if target does not already have a property of the same name.
+     */
+    function mixin(target, source, force, deepStringMixin) {
+        if (source) {
+            eachProp(source, function (value, prop) {
+                if (force || !hasProp(target, prop)) {
+                    if (deepStringMixin && typeof value !== 'string') {
+                        if (!target[prop]) {
+                            target[prop] = {};
+                        }
+                        mixin(target[prop], value, force, deepStringMixin);
+                    } else {
+                        target[prop] = value;
+                    }
+                }
+            });
+        }
+        return target;
+    }
+
+    //Similar to Function.prototype.bind, but the 'this' object is specified
+    //first, since it is easier to read/figure out what 'this' will be.
+    function bind(obj, fn) {
+        return function () {
+            return fn.apply(obj, arguments);
+        };
+    }
+
+    function scripts() {
+        return document.getElementsByTagName('script');
+    }
+
+    //Allow getting a global that expressed in
+    //dot notation, like 'a.b.c'.
+    function getGlobal(value) {
+        if (!value) {
+            return value;
+        }
+        var g = global;
+        each(value.split('.'), function (part) {
+            g = g[part];
+        });
+        return g;
+    }
+
+    /**
+     * Constructs an error with a pointer to an URL with more information.
+     * @param {String} id the error ID that maps to an ID on a web page.
+     * @param {String} message human readable error.
+     * @param {Error} [err] the original error, if there is one.
+     *
+     * @returns {Error}
+     */
+    function makeError(id, msg, err, requireModules) {
+        var e = new Error(msg + '\nhttp://requirejs.org/docs/errors.html#' + id);
+        e.requireType = id;
+        e.requireModules = requireModules;
+        if (err) {
+            e.originalError = err;
+        }
+        return e;
+    }
+
+    if (typeof define !== 'undefined') {
+        //If a define is already in play via another AMD loader,
+        //do not overwrite.
+        return;
+    }
+
+    if (typeof requirejs !== 'undefined') {
+        if (isFunction(requirejs)) {
+            //Do not overwrite and existing requirejs instance.
+            return;
+        }
+        cfg = requirejs;
+        requirejs = undefined;
+    }
+
+    //Allow for a require config object
+    if (typeof require !== 'undefined' && !isFunction(require)) {
+        //assume it is a config object.
+        cfg = require;
+        require = undefined;
+    }
+
+    function newContext(contextName) {
+        var inCheckLoaded, Module, context, handlers,
+            checkLoadedTimeoutId,
+            config = {
+                waitSeconds: 7,
+                baseUrl: './',
+                paths: {},
+                pkgs: {},
+                shim: {},
+                map: {},
+                config: {}
+            },
+            registry = {},
+            undefEvents = {},
+            defQueue = [],
+            defined = {},
+            urlFetched = {},
+            requireCounter = 1,
+            unnormalizedCounter = 1;
+
+        /**
+         * Trims the . and .. from an array of path segments.
+         * It will keep a leading path segment if a .. will become
+         * the first path segment, to help with module name lookups,
+         * which act like paths, but can be remapped. But the end result,
+         * all paths that use this function should look normalized.
+         * NOTE: this method MODIFIES the input array.
+         * @param {Array} ary the array of path segments.
+         */
+        function trimDots(ary) {
+            var i, part;
+            for (i = 0; ary[i]; i += 1) {
+                part = ary[i];
+                if (part === '.') {
+                    ary.splice(i, 1);
+                    i -= 1;
+                } else if (part === '..') {
+                    if (i === 1 && (ary[2] === '..' || ary[0] === '..')) {
+                        //End of the line. Keep at least one non-dot
+                        //path segment at the front so it can be mapped
+                        //correctly to disk. Otherwise, there is likely
+                        //no path mapping for a path starting with '..'.
+                        //This can still fail, but catches the most reasonable
+                        //uses of ..
+                        break;
+                    } else if (i > 0) {
+                        ary.splice(i - 1, 2);
+                        i -= 2;
+                    }
+                }
+            }
+        }
+
+        /**
+         * Given a relative module name, like ./something, normalize it to
+         * a real name that can be mapped to a path.
+         * @param {String} name the relative name
+         * @param {String} baseName a real name that the name arg is relative
+         * to.
+         * @param {Boolean} applyMap apply the map config to the value. Should
+         * only be done if this normalization is for a dependency ID.
+         * @returns {String} normalized name
+         */
+        function normalize(name, baseName, applyMap) {
+            var pkgName, pkgConfig, mapValue, nameParts, i, j, nameSegment,
+                foundMap, foundI, foundStarMap, starI,
+                baseParts = baseName && baseName.split('/'),
+                normalizedBaseParts = baseParts,
+                map = config.map,
+                starMap = map && map['*'];
+
+            //Adjust any relative paths.
+            if (name && name.charAt(0) === '.') {
+                //If have a base name, try to normalize against it,
+                //otherwise, assume it is a top-level require that will
+                //be relative to baseUrl in the end.
+                if (baseName) {
+                    if (getOwn(config.pkgs, baseName)) {
+                        //If the baseName is a package name, then just treat it as one
+                        //name to concat the name with.
+                        normalizedBaseParts = baseParts = [baseName];
+                    } else {
+                        //Convert baseName to array, and lop off the last part,
+                        //so that . matches that 'directory' and not name of the baseName's
+                        //module. For instance, baseName of 'one/two/three', maps to
+                        //'one/two/three.js', but we want the directory, 'one/two' for
+                        //this normalization.
+                        normalizedBaseParts = baseParts.slice(0, baseParts.length - 1);
+                    }
+
+                    name = normalizedBaseParts.concat(name.split('/'));
+                    trimDots(name);
+
+                    //Some use of packages may use a . path to reference the
+                    //'main' module name, so normalize for that.
+                    pkgConfig = getOwn(config.pkgs, (pkgName = name[0]));
+                    name = name.join('/');
+                    if (pkgConfig && name === pkgName + '/' + pkgConfig.main) {
+                        name = pkgName;
+                    }
+                } else if (name.indexOf('./') === 0) {
+                    // No baseName, so this is ID is resolved relative
+                    // to baseUrl, pull off the leading dot.
+                    name = name.substring(2);
+                }
+            }
+
+            //Apply map config if available.
+            if (applyMap && (baseParts || starMap) && map) {
+                nameParts = name.split('/');
+
+                for (i = nameParts.length; i > 0; i -= 1) {
+                    nameSegment = nameParts.slice(0, i).join('/');
+
+                    if (baseParts) {
+                        //Find the longest baseName segment match in the config.
+                        //So, do joins on the biggest to smallest lengths of baseParts.
+                        for (j = baseParts.length; j > 0; j -= 1) {
+                            mapValue = getOwn(map, baseParts.slice(0, j).join('/'));
+
+                            //baseName segment has config, find if it has one for
+                            //this name.
+                            if (mapValue) {
+                                mapValue = getOwn(mapValue, nameSegment);
+                                if (mapValue) {
+                                    //Match, update name to the new value.
+                                    foundMap = mapValue;
+                                    foundI = i;
+                                    break;
+                                }
+                            }
+                        }
+                    }
+
+                    if (foundMap) {
+                        break;
+                    }
+
+                    //Check for a star map match, but just hold on to it,
+                    //if there is a shorter segment match later in a matching
+                    //config, then favor over this star map.
+                    if (!foundStarMap && starMap && getOwn(starMap, nameSegment)) {
+                        foundStarMap = getOwn(starMap, nameSegment);
+                        starI = i;
+                    }
+                }
+
+                if (!foundMap && foundStarMap) {
+                    foundMap = foundStarMap;
+                    foundI = starI;
+                }
+
+                if (foundMap) {
+                    nameParts.splice(0, foundI, foundMap);
+                    name = nameParts.join('/');
+                }
+            }
+
+            return name;
+        }
+
+        function removeScript(name) {
+            if (isBrowser) {
+                each(scripts(), function (scriptNode) {
+                    if (scriptNode.getAttribute('data-requiremodule') === name &&
+                            scriptNode.getAttribute('data-requirecontext') === context.contextName) {
+                        scriptNode.parentNode.removeChild(scriptNode);
+                        return true;
+                    }
+                });
+            }
+        }
+
+        function hasPathFallback(id) {
+            var pathConfig = getOwn(config.paths, id);
+            if (pathConfig && isArray(pathConfig) && pathConfig.length > 1) {
+                removeScript(id);
+                //Pop off the first array value, since it failed, and
+                //retry
+                pathConfig.shift();
+                context.require.undef(id);
+                context.require([id]);
+                return true;
+            }
+        }
+
+        //Turns a plugin!resource to [plugin, resource]
+        //with the plugin being undefined if the name
+        //did not have a plugin prefix.
+        function splitPrefix(name) {
+            var prefix,
+                index = name ? name.indexOf('!') : -1;
+            if (index > -1) {
+                prefix = name.substring(0, index);
+                name = name.substring(index + 1, name.length);
+            }
+            return [prefix, name];
+        }
+
+        /**
+         * Creates a module mapping that includes plugin prefix, module
+         * name, and path. If parentModuleMap is provided it will
+         * also normalize the name via require.normalize()
+         *
+         * @param {String} name the module name
+         * @param {String} [parentModuleMap] parent module map
+         * for the module name, used to resolve relative names.
+         * @param {Boolean} isNormalized: is the ID already normalized.
+         * This is true if this call is done for a define() module ID.
+         * @param {Boolean} applyMap: apply the map config to the ID.
+         * Should only be true if this map is for a dependency.
+         *
+         * @returns {Object}
+         */
+        function makeModuleMap(name, parentModuleMap, isNormalized, applyMap) {
+            var url, pluginModule, suffix, nameParts,
+                prefix = null,
+                parentName = parentModuleMap ? parentModuleMap.name : null,
+                originalName = name,
+                isDefine = true,
+                normalizedName = '';
+
+            //If no name, then it means it is a require call, generate an
+            //internal name.
+            if (!name) {
+                isDefine = false;
+                name = '_@r' + (requireCounter += 1);
+            }
+
+            nameParts = splitPrefix(name);
+            prefix = nameParts[0];
+            name = nameParts[1];
+
+            if (prefix) {
+                prefix = normalize(prefix, parentName, applyMap);
+                pluginModule = getOwn(defined, prefix);
+            }
+
+            //Account for relative paths if there is a base name.
+            if (name) {
+                if (prefix) {
+                    if (pluginModule && pluginModule.normalize) {
+                        //Plugin is loaded, use its normalize method.
+                        normalizedName = pluginModule.normalize(name, function (name) {
+                            return normalize(name, parentName, applyMap);
+                        });
+                    } else {
+                        normalizedName = normalize(name, parentName, applyMap);
+                    }
+                } else {
+                    //A regular module.
+                    normalizedName = normalize(name, parentName, applyMap);
+
+                    //Normalized name may be a plugin ID due to map config
+                    //application in normalize. The map config values must
+                    //already be normalized, so do not need to redo that part.
+                    nameParts = splitPrefix(normalizedName);
+                    prefix = nameParts[0];
+                    normalizedName = nameParts[1];
+                    isNormalized = true;
+
+                    url = context.nameToUrl(normalizedName);
+                }
+            }
+
+            //If the id is a plugin id that cannot be determined if it needs
+            //normalization, stamp it with a unique ID so two matching relative
+            //ids that may conflict can be separate.
+            suffix = prefix && !pluginModule && !isNormalized ?
+                     '_unnormalized' + (unnormalizedCounter += 1) :
+                     '';
+
+            return {
+                prefix: prefix,
+                name: normalizedName,
+                parentMap: parentModuleMap,
+                unnormalized: !!suffix,
+                url: url,
+                originalName: originalName,
+                isDefine: isDefine,
+                id: (prefix ?
+                        prefix + '!' + normalizedName :
+                        normalizedName) + suffix
+            };
+        }
+
+        function getModule(depMap) {
+            var id = depMap.id,
+                mod = getOwn(registry, id);
+
+            if (!mod) {
+                mod = registry[id] = new context.Module(depMap);
+            }
+
+            return mod;
+        }
+
+        function on(depMap, name, fn) {
+            var id = depMap.id,
+                mod = getOwn(registry, id);
+
+            if (hasProp(defined, id) &&
+                    (!mod || mod.defineEmitComplete)) {
+                if (name === 'defined') {
+                    fn(defined[id]);
+                }
+            } else {
+                getModule(depMap).on(name, fn);
+            }
+        }
+
+        function onError(err, errback) {
+            var ids = err.requireModules,
+                notified = false;
+
+            if (errback) {
+                errback(err);
+            } else {
+                each(ids, function (id) {
+                    var mod = getOwn(registry, id);
+                    if (mod) {
+                        //Set error on module, so it skips timeout checks.
+                        mod.error = err;
+                        if (mod.events.error) {
+                            notified = true;
+                            mod.emit('error', err);
+                        }
+                    }
+                });
+
+                if (!notified) {
+                    req.onError(err);
+                }
+            }
+        }
+
+        /**
+         * Internal method to transfer globalQueue items to this context's
+         * defQueue.
+         */
+        function takeGlobalQueue() {
+            //Push all the globalDefQueue items into the context's defQueue
+            if (globalDefQueue.length) {
+                //Array splice in the values since the context code has a
+                //local var ref to defQueue, so cannot just reassign the one
+                //on context.
+                apsp.apply(defQueue,
+                           [defQueue.length - 1, 0].concat(globalDefQueue));
+                globalDefQueue = [];
+            }
+        }
+
+        handlers = {
+            'require': function (mod) {
+                if (mod.require) {
+                    return mod.require;
+                } else {
+                    return (mod.require = context.makeRequire(mod.map));
+                }
+            },
+            'exports': function (mod) {
+                mod.usingExports = true;
+                if (mod.map.isDefine) {
+                    if (mod.exports) {
+                        return mod.exports;
+                    } else {
+                        return (mod.exports = defined[mod.map.id] = {});
+                    }
+                }
+            },
+            'module': function (mod) {
+                if (mod.module) {
+                    return mod.module;
+                } else {
+                    return (mod.module = {
+                        id: mod.map.id,
+                        uri: mod.map.url,
+                        config: function () {
+                            return (config.config && getOwn(config.config, mod.map.id)) || {};
+                        },
+                        exports: defined[mod.map.id]
+                    });
+                }
+            }
+        };
+
+        function cleanRegistry(id) {
+            //Clean up machinery used for waiting modules.
+            delete registry[id];
+        }
+
+        function breakCycle(mod, traced, processed) {
+            var id = mod.map.id;
+
+            if (mod.error) {
+                mod.emit('error', mod.error);
+            } else {
+                traced[id] = true;
+                each(mod.depMaps, function (depMap, i) {
+                    var depId = depMap.id,
+                        dep = getOwn(registry, depId);
+
+                    //Only force things that have not completed
+                    //being defined, so still in the registry,
+                    //and only if it has not been matched up
+                    //in the module already.
+                    if (dep && !mod.depMatched[i] && !processed[depId]) {
+                        if (getOwn(traced, depId)) {
+                            mod.defineDep(i, defined[depId]);
+                            mod.check(); //pass false?
+                        } else {
+                            breakCycle(dep, traced, processed);
+                        }
+                    }
+                });
+                processed[id] = true;
+            }
+        }
+
+        function checkLoaded() {
+            var map, modId, err, usingPathFallback,
+                waitInterval = config.waitSeconds * 1000,
+                //It is possible to disable the wait interval by using waitSeconds of 0.
+                expired = waitInterval && (context.startTime + waitInterval) < new Date().getTime(),
+                noLoads = [],
+                reqCalls = [],
+                stillLoading = false,
+                needCycleCheck = true;
+
+            //Do not bother if this call was a result of a cycle break.
+            if (inCheckLoaded) {
+                return;
+            }
+
+            inCheckLoaded = true;
+
+            //Figure out the state of all the modules.
+            eachProp(registry, function (mod) {
+                map = mod.map;
+                modId = map.id;
+
+                //Skip things that are not enabled or in error state.
+                if (!mod.enabled) {
+                    return;
+                }
+
+                if (!map.isDefine) {
+                    reqCalls.push(mod);
+                }
+
+                if (!mod.error) {
+                    //If the module should be executed, and it has not
+                    //been inited and time is up, remember it.
+                    if (!mod.inited && expired) {
+                        if (hasPathFallback(modId)) {
+                            usingPathFallback = true;
+                            stillLoading = true;
+                        } else {
+                            noLoads.push(modId);
+                            removeScript(modId);
+                        }
+                    } else if (!mod.inited && mod.fetched && map.isDefine) {
+                        stillLoading = true;
+                        if (!map.prefix) {
+                            //No reason to keep looking for unfinished
+                            //loading. If the only stillLoading is a
+                            //plugin resource though, keep going,
+                            //because it may be that a plugin resource
+                            //is waiting on a non-plugin cycle.
+                            return (needCycleCheck = false);
+                        }
+                    }
+                }
+            });
+
+            if (expired && noLoads.length) {
+                //If wait time expired, throw error of unloaded modules.
+                err = makeError('timeout', 'Load timeout for modules: ' + noLoads, null, noLoads);
+                err.contextName = context.contextName;
+                return onError(err);
+            }
+
+            //Not expired, check for a cycle.
+            if (needCycleCheck) {
+                each(reqCalls, function (mod) {
+                    breakCycle(mod, {}, {});
+                });
+            }
+
+            //If still waiting on loads, and the waiting load is something
+            //other than a plugin resource, or there are still outstanding
+            //scripts, then just try back later.
+            if ((!expired || usingPathFallback) && stillLoading) {
+                //Something is still waiting to load. Wait for it, but only
+                //if a timeout is not already in effect.
+                if ((isBrowser || isWebWorker) && !checkLoadedTimeoutId) {
+                    checkLoadedTimeoutId = setTimeout(function () {
+                        checkLoadedTimeoutId = 0;
+                        checkLoaded();
+                    }, 50);
+                }
+            }
+
+            inCheckLoaded = false;
+        }
+
+        Module = function (map) {
+            this.events = getOwn(undefEvents, map.id) || {};
+            this.map = map;
+            this.shim = getOwn(config.shim, map.id);
+            this.depExports = [];
+            this.depMaps = [];
+            this.depMatched = [];
+            this.pluginMaps = {};
+            this.depCount = 0;
+
+            /* this.exports this.factory
+               this.depMaps = [],
+               this.enabled, this.fetched
+            */
+        };
+
+        Module.prototype = {
+            init: function (depMaps, factory, errback, options) {
+                options = options || {};
+
+                //Do not do more inits if already done. Can happen if there
+                //are multiple define calls for the same module. That is not
+                //a normal, common case, but it is also not unexpected.
+                if (this.inited) {
+                    return;
+                }
+
+                this.factory = factory;
+
+                if (errback) {
+                    //Register for errors on this module.
+                    this.on('error', errback);
+                } else if (this.events.error) {
+                    //If no errback already, but there are error listeners
+                    //on this module, set up an errback to pass to the deps.
+                    errback = bind(this, function (err) {
+                        this.emit('error', err);
+                    });
+                }
+
+                //Do a copy of the dependency array, so that
+                //source inputs are not modified. For example
+                //"shim" deps are passed in here directly, and
+                //doing a direct modification of the depMaps array
+                //would affect that config.
+                this.depMaps = depMaps && depMaps.slice(0);
+
+                this.errback = errback;
+
+                //Indicate this module has be initialized
+                this.inited = true;
+
+                this.ignore = options.ignore;
+
+                //Could have option to init this module in enabled mode,
+                //or could have been previously marked as enabled. However,
+                //the dependencies are not known until init is called. So
+                //if enabled previously, now trigger dependencies as enabled.
+                if (options.enabled || this.enabled) {
+                    //Enable this module and dependencies.
+                    //Will call this.check()
+                    this.enable();
+                } else {
+                    this.check();
+                }
+            },
+
+            defineDep: function (i, depExports) {
+                //Because of cycles, defined callback for a given
+                //export can be called more than once.
+                if (!this.depMatched[i]) {
+                    this.depMatched[i] = true;
+                    this.depCount -= 1;
+                    this.depExports[i] = depExports;
+                }
+            },
+
+            fetch: function () {
+                if (this.fetched) {
+                    return;
+                }
+                this.fetched = true;
+
+                context.startTime = (new Date()).getTime();
+
+                var map = this.map;
+
+                //If the manager is for a plugin managed resource,
+                //ask the plugin to load it now.
+                if (this.shim) {
+                    context.makeRequire(this.map, {
+                        enableBuildCallback: true
+                    })(this.shim.deps || [], bind(this, function () {
+                        return map.prefix ? this.callPlugin() : this.load();
+                    }));
+                } else {
+                    //Regular dependency.
+                    return map.prefix ? this.callPlugin() : this.load();
+                }
+            },
+
+            load: function () {
+                var url = this.map.url;
+
+                //Regular dependency.
+                if (!urlFetched[url]) {
+                    urlFetched[url] = true;
+                    context.load(this.map.id, url);
+                }
+            },
+
+            /**
+             * Checks is the module is ready to define itself, and if so,
+             * define it.
+             */
+            check: function () {
+                if (!this.enabled || this.enabling) {
+                    return;
+                }
+
+                var err, cjsModule,
+                    id = this.map.id,
+                    depExports = this.depExports,
+                    exports = this.exports,
+                    factory = this.factory;
+
+                if (!this.inited) {
+                    this.fetch();
+                } else if (this.error) {
+                    this.emit('error', this.error);
+                } else if (!this.defining) {
+                    //The factory could trigger another require call
+                    //that would result in checking this module to
+                    //define itself again. If already in the process
+                    //of doing that, skip this work.
+                    this.defining = true;
+
+                    if (this.depCount < 1 && !this.defined) {
+                        if (isFunction(factory)) {
+                            //If there is an error listener, favor passing
+                            //to that instead of throwing an error.
+                            if (this.events.error) {
+                                try {
+                                    exports = context.execCb(id, factory, depExports, exports);
+                                } catch (e) {
+                                    err = e;
+                                }
+                            } else {
+                                exports = context.execCb(id, factory, depExports, exports);
+                            }
+
+                            if (this.map.isDefine) {
+                                //If setting exports via 'module' is in play,
+                                //favor that over return value and exports. After that,
+                                //favor a non-undefined return value over exports use.
+                                cjsModule = this.module;
+                                if (cjsModule &&
+                                        cjsModule.exports !== undefined &&
+                                        //Make sure it is not already the exports value
+                                        cjsModule.exports !== this.exports) {
+                                    exports = cjsModule.exports;
+                                } else if (exports === undefined && this.usingExports) {
+                                    //exports already set the defined value.
+                                    exports = this.exports;
+                                }
+                            }
+
+                            if (err) {
+                                err.requireMap = this.map;
+                                err.requireModules = [this.map.id];
+                                err.requireType = 'define';
+                                return onError((this.error = err));
+                            }
+
+                        } else {
+                            //Just a literal value
+                            exports = factory;
+                        }
+
+                        this.exports = exports;
+
+                        if (this.map.isDefine && !this.ignore) {
+                            defined[id] = exports;
+
+                            if (req.onResourceLoad) {
+                                req.onResourceLoad(context, this.map, this.depMaps);
+                            }
+                        }
+
+                        //Clean up
+                        delete registry[id];
+
+                        this.defined = true;
+                    }
+
+                    //Finished the define stage. Allow calling check again
+                    //to allow define notifications below in the case of a
+                    //cycle.
+                    this.defining = false;
+
+                    if (this.defined && !this.defineEmitted) {
+                        this.defineEmitted = true;
+                        this.emit('defined', this.exports);
+                        this.defineEmitComplete = true;
+                    }
+
+                }
+            },
+
+            callPlugin: function () {
+                var map = this.map,
+                    id = map.id,
+                    //Map already normalized the prefix.
+                    pluginMap = makeModuleMap(map.prefix);
+
+                //Mark this as a dependency for this plugin, so it
+                //can be traced for cycles.
+                this.depMaps.push(pluginMap);
+
+                on(pluginMap, 'defined', bind(this, function (plugin) {
+                    var load, normalizedMap, normalizedMod,
+                        name = this.map.name,
+                        parentName = this.map.parentMap ? this.map.parentMap.name : null,
+                        localRequire = context.makeRequire(map.parentMap, {
+                            enableBuildCallback: true,
+                            skipMap: true
+                        });
+
+                    //If current map is not normalized, wait for that
+                    //normalized name to load instead of continuing.
+                    if (this.map.unnormalized) {
+                        //Normalize the ID if the plugin allows it.
+                        if (plugin.normalize) {
+                            name = plugin.normalize(name, function (name) {
+                                return normalize(name, parentName, true);
+                            }) || '';
+                        }
+
+                        //prefix and name should already be normalized, no need
+                        //for applying map config again either.
+                        normalizedMap = makeModuleMap(map.prefix + '!' + name,
+                                                      this.map.parentMap);
+                        on(normalizedMap,
+                            'defined', bind(this, function (value) {
+                                this.init([], function () { return value; }, null, {
+                                    enabled: true,
+                                    ignore: true
+                                });
+                            }));
+
+                        normalizedMod = getOwn(registry, normalizedMap.id);
+                        if (normalizedMod) {
+                            //Mark this as a dependency for this plugin, so it
+                            //can be traced for cycles.
+                            this.depMaps.push(normalizedMap);
+
+                            if (this.events.error) {
+                                normalizedMod.on('error', bind(this, function (err) {
+                                    this.emit('error', err);
+                                }));
+                            }
+                            normalizedMod.enable();
+                        }
+
+                        return;
+                    }
+
+                    load = bind(this, function (value) {
+                        this.init([], function () { return value; }, null, {
+                            enabled: true
+                        });
+                    });
+
+                    load.error = bind(this, function (err) {
+                        this.inited = true;
+                        this.error = err;
+                        err.requireModules = [id];
+
+                        //Remove temp unnormalized modules for this module,
+                        //since they will never be resolved otherwise now.
+                        eachProp(registry, function (mod) {
+                            if (mod.map.id.indexOf(id + '_unnormalized') === 0) {
+                                cleanRegistry(mod.map.id);
+                            }
+                        });
+
+                        onError(err);
+                    });
+
+                    //Allow plugins to load other code without having to know the
+                    //context or how to 'complete' the load.
+                    load.fromText = bind(this, function (text, textAlt) {
+                        /*jslint evil: true */
+                        var moduleName = map.name,
+                            moduleMap = makeModuleMap(moduleName),
+                            hasInteractive = useInteractive;
+
+                        //As of 2.1.0, support just passing the text, to reinforce
+                        //fromText only being called once per resource. Still
+                        //support old style of passing moduleName but discard
+                        //that moduleName in favor of the internal ref.
+                        if (textAlt) {
+                            text = textAlt;
+                        }
+
+                        //Turn off interactive script matching for IE for any define
+                        //calls in the text, then turn it back on at the end.
+                        if (hasInteractive) {
+                            useInteractive = false;
+                        }
+
+                        //Prime the system by creating a module instance for
+                        //it.
+                        getModule(moduleMap);
+
+                        //Transfer any config to this other module.
+                        if (hasProp(config.config, id)) {
+                            config.config[moduleName] = config.config[id];
+                        }
+
+                        try {
+                            req.exec(text);
+                        } catch (e) {
+                            throw new Error('fromText eval for ' + moduleName +
+                                            ' failed: ' + e);
+                        }
+
+                        if (hasInteractive) {
+                            useInteractive = true;
+                        }
+
+                        //Mark this as a dependency for the plugin
+                        //resource
+                        this.depMaps.push(moduleMap);
+
+                        //Support anonymous modules.
+                        context.completeLoad(moduleName);
+
+                        //Bind the value of that module to the value for this
+                        //resource ID.
+                        localRequire([moduleName], load);
+                    });
+
+                    //Use parentName here since the plugin's name is not reliable,
+                    //could be some weird string with no path that actually wants to
+                    //reference the parentName's path.
+                    plugin.load(map.name, localRequire, load, config);
+                }));
+
+                context.enable(pluginMap, this);
+                this.pluginMaps[pluginMap.id] = pluginMap;
+            },
+
+            enable: function () {
+                this.enabled = true;
+
+                //Set flag mentioning that the module is enabling,
+                //so that immediate calls to the defined callbacks
+                //for dependencies do not trigger inadvertent load
+                //with the depCount still being zero.
+                this.enabling = true;
+
+                //Enable each dependency
+                each(this.depMaps, bind(this, function (depMap, i) {
+                    var id, mod, handler;
+
+                    if (typeof depMap === 'string') {
+                        //Dependency needs to be converted to a depMap
+                        //and wired up to this module.
+                        depMap = makeModuleMap(depMap,
+                                               (this.map.isDefine ? this.map : this.map.parentMap),
+                                               false,
+                                               !this.skipMap);
+                        this.depMaps[i] = depMap;
+
+                        handler = getOwn(handlers, depMap.id);
+
+                        if (handler) {
+                            this.depExports[i] = handler(this);
+                            return;
+                        }
+
+                        this.depCount += 1;
+
+                        on(depMap, 'defined', bind(this, function (depExports) {
+                            this.defineDep(i, depExports);
+                            this.check();
+                        }));
+
+                        if (this.errback) {
+                            on(depMap, 'error', this.errback);
+                        }
+                    }
+
+                    id = depMap.id;
+                    mod = registry[id];
+
+                    //Skip special modules like 'require', 'exports', 'module'
+                    //Also, don't call enable if it is already enabled,
+                    //important in circular dependency cases.
+                    if (!hasProp(handlers, id) && mod && !mod.enabled) {
+                        context.enable(depMap, this);
+                    }
+                }));
+
+                //Enable each plugin that is used in
+                //a dependency
+                eachProp(this.pluginMaps, bind(this, function (pluginMap) {
+                    var mod = getOwn(registry, pluginMap.id);
+                    if (mod && !mod.enabled) {
+                        context.enable(pluginMap, this);
+                    }
+                }));
+
+                this.enabling = false;
+
+                this.check();
+            },
+
+            on: function (name, cb) {
+                var cbs = this.events[name];
+                if (!cbs) {
+                    cbs = this.events[name] = [];
+                }
+                cbs.push(cb);
+            },
+
+            emit: function (name, evt) {
+                each(this.events[name], function (cb) {
+                    cb(evt);
+                });
+                if (name === 'error') {
+                    //Now that the error handler was triggered, remove
+                    //the listeners, since this broken Module instance
+                    //can stay around for a while in the registry.
+                    delete this.events[name];
+                }
+            }
+        };
+
+        function callGetModule(args) {
+            //Skip modules already defined.
+            if (!hasProp(defined, args[0])) {
+                getModule(makeModuleMap(args[0], null, true)).init(args[1], args[2]);
+            }
+        }
+
+        function removeListener(node, func, name, ieName) {
+            //Favor detachEvent because of IE9
+            //issue, see attachEvent/addEventListener comment elsewhere
+            //in this file.
+            if (node.detachEvent && !isOpera) {
+                //Probably IE. If not it will throw an error, which will be
+                //useful to know.
+                if (ieName) {
+                    node.detachEvent(ieName, func);
+                }
+            } else {
+                node.removeEventListener(name, func, false);
+            }
+        }
+
+        /**
+         * Given an event from a script node, get the requirejs info from it,
+         * and then removes the event listeners on the node.
+         * @param {Event} evt
+         * @returns {Object}
+         */
+        function getScriptData(evt) {
+            //Using currentTarget instead of target for Firefox 2.0's sake. Not
+            //all old browsers will be supported, but this one was easy enough
+            //to support and still makes sense.
+            var node = evt.currentTarget || evt.srcElement;
+
+            //Remove the listeners once here.
+            removeListener(node, context.onScriptLoad, 'load', 'onreadystatechange');
+            removeListener(node, context.onScriptError, 'error');
+
+            return {
+                node: node,
+                id: node && node.getAttribute('data-requiremodule')
+            };
+        }
+
+        function intakeDefines() {
+            var args;
+
+            //Any defined modules in the global queue, intake them now.
+            takeGlobalQueue();
+
+            //Make sure any remaining defQueue items get properly processed.
+            while (defQueue.length) {
+                args = defQueue.shift();
+                if (args[0] === null) {
+                    return onError(makeError('mismatch', 'Mismatched anonymous define() module: ' + args[args.length - 1]));
+                } else {
+                    //args are id, deps, factory. Should be normalized by the
+                    //define() function.
+                    callGetModule(args);
+                }
+            }
+        }
+
+        context = {
+            config: config,
+            contextName: contextName,
+            registry: registry,
+            defined: defined,
+            urlFetched: urlFetched,
+            defQueue: defQueue,
+            Module: Module,
+            makeModuleMap: makeModuleMap,
+            nextTick: req.nextTick,
+
+            /**
+             * Set a configuration for the context.
+             * @param {Object} cfg config object to integrate.
+             */
+            configure: function (cfg) {
+                //Make sure the baseUrl ends in a slash.
+                if (cfg.baseUrl) {
+                    if (cfg.baseUrl.charAt(cfg.baseUrl.length - 1) !== '/') {
+                        cfg.baseUrl += '/';
+                    }
+                }
+
+                //Save off the paths and packages since they require special processing,
+                //they are additive.
+                var pkgs = config.pkgs,
+                    shim = config.shim,
+                    objs = {
+                        paths: true,
+                        config: true,
+                        map: true
+                    };
+
+                eachProp(cfg, function (value, prop) {
+                    if (objs[prop]) {
+                        if (prop === 'map') {
+                            mixin(config[prop], value, true, true);
+                        } else {
+                            mixin(config[prop], value, true);
+                        }
+                    } else {
+                        config[prop] = value;
+                    }
+                });
+
+                //Merge shim
+                if (cfg.shim) {
+                    eachProp(cfg.shim, function (value, id) {
+                        //Normalize the structure
+                        if (isArray(value)) {
+                            value = {
+                                deps: value
+                            };
+                        }
+                        if ((value.exports || value.init) && !value.exportsFn) {
+                            value.exportsFn = context.makeShimExports(value);
+                        }
+                        shim[id] = value;
+                    });
+                    config.shim = shim;
+                }
+
+                //Adjust packages if necessary.
+                if (cfg.packages) {
+                    each(cfg.packages, function (pkgObj) {
+                        var location;
+
+                        pkgObj = typeof pkgObj === 'string' ? { name: pkgObj } : pkgObj;
+                        location = pkgObj.location;
+
+                        //Create a brand new object on pkgs, since currentPackages can
+                        //be passed in again, and config.pkgs is the internal transformed
+                        //state for all package configs.
+                        pkgs[pkgObj.name] = {
+                            name: pkgObj.name,
+                            location: location || pkgObj.name,
+                            //Remove leading dot in main, so main paths are normalized,
+                            //and remove any trailing .js, since different package
+                            //envs have different conventions: some use a module name,
+                            //some use a file name.
+                            main: (pkgObj.main || 'main')
+                                  .replace(currDirRegExp, '')
+                                  .replace(jsSuffixRegExp, '')
+                        };
+                    });
+
+                    //Done with modifications, assing packages back to context config
+                    config.pkgs = pkgs;
+                }
+
+                //If there are any "waiting to execute" modules in the registry,
+                //update the maps for them, since their info, like URLs to load,
+                //may have changed.
+                eachProp(registry, function (mod, id) {
+                    //If module already has init called, since it is too
+                    //late to modify them, and ignore unnormalized ones
+                    //since they are transient.
+                    if (!mod.inited && !mod.map.unnormalized) {
+                        mod.map = makeModuleMap(id);
+                    }
+                });
+
+                //If a deps array or a config callback is specified, then call
+                //require with those args. This is useful when require is defined as a
+                //config object before require.js is loaded.
+                if (cfg.deps || cfg.callback) {
+                    context.require(cfg.deps || [], cfg.callback);
+                }
+            },
+
+            makeShimExports: function (value) {
+                function fn() {
+                    var ret;
+                    if (value.init) {
+                        ret = value.init.apply(global, arguments);
+                    }
+                    return ret || (value.exports && getGlobal(value.exports));
+                }
+                return fn;
+            },
+
+            makeRequire: function (relMap, options) {
+                options = options || {};
+
+                function localRequire(deps, callback, errback) {
+                    var id, map, requireMod;
+
+                    if (options.enableBuildCallback && callback && isFunction(callback)) {
+                        callback.__requireJsBuild = true;
+                    }
+
+                    if (typeof deps === 'string') {
+                        if (isFunction(callback)) {
+                            //Invalid call
+                            return onError(makeError('requireargs', 'Invalid require call'), errback);
+                        }
+
+                        //If require|exports|module are requested, get the
+                        //value for them from the special handlers. Caveat:
+                        //this only works while module is being defined.
+                        if (relMap && hasProp(handlers, deps)) {
+                            return handlers[deps](registry[relMap.id]);
+                        }
+
+                        //Synchronous access to one module. If require.get is
+                        //available (as in the Node adapter), prefer that.
+                        if (req.get) {
+                            return req.get(context, deps, relMap);
+                        }
+
+                        //Normalize module name, if it contains . or ..
+                        map = makeModuleMap(deps, relMap, false, true);
+                        id = map.id;
+
+                        if (!hasProp(defined, id)) {
+                            return onError(makeError('notloaded', 'Module name "' +
+                                        id +
+                                        '" has not been loaded yet for context: ' +
+                                        contextName +
+                                        (relMap ? '' : '. Use require([])')));
+                        }
+                        return defined[id];
+                    }
+
+                    //Grab defines waiting in the global queue.
+                    intakeDefines();
+
+                    //Mark all the dependencies as needing to be loaded.
+                    context.nextTick(function () {
+                        //Some defines could have been added since the
+                        //require call, collect them.
+                        intakeDefines();
+
+                        requireMod = getModule(makeModuleMap(null, relMap));
+
+                        //Store if map config should be applied to this require
+                        //call for dependencies.
+                        requireMod.skipMap = options.skipMap;
+
+                        requireMod.init(deps, callback, errback, {
+                            enabled: true
+                        });
+
+                        checkLoaded();
+                    });
+
+                    return localRequire;
+                }
+
+                mixin(localRequire, {
+                    isBrowser: isBrowser,
+
+                    /**
+                     * Converts a module name + .extension into an URL path.
+                     * *Requires* the use of a module name. It does not support using
+                     * plain URLs like nameToUrl.
+                     */
+                    toUrl: function (moduleNamePlusExt) {
+                        var index = moduleNamePlusExt.lastIndexOf('.'),
+                            ext = null;
+
+                        if (index !== -1) {
+                            ext = moduleNamePlusExt.substring(index, moduleNamePlusExt.length);
+                            moduleNamePlusExt = moduleNamePlusExt.substring(0, index);
+                        }
+
+                        return context.nameToUrl(normalize(moduleNamePlusExt,
+                                                relMap && relMap.id, true), ext);
+                    },
+
+                    defined: function (id) {
+                        return hasProp(defined, makeModuleMap(id, relMap, false, true).id);
+                    },
+
+                    specified: function (id) {
+                        id = makeModuleMap(id, relMap, false, true).id;
+                        return hasProp(defined, id) || hasProp(registry, id);
+                    }
+                });
+
+                //Only allow undef on top level require calls
+                if (!relMap) {
+                    localRequire.undef = function (id) {
+                        //Bind any waiting define() calls to this context,
+                        //fix for #408
+                        takeGlobalQueue();
+
+                        var map = makeModuleMap(id, relMap, true),
+                            mod = getOwn(registry, id);
+
+                        delete defined[id];
+                        delete urlFetched[map.url];
+                        delete undefEvents[id];
+
+                        if (mod) {
+                            //Hold on to listeners in case the
+                            //module will be attempted to be reloaded
+                            //using a different config.
+                            if (mod.events.defined) {
+                                undefEvents[id] = mod.events;
+                            }
+
+                            cleanRegistry(id);
+                        }
+                    };
+                }
+
+                return localRequire;
+            },
+
+            /**
+             * Called to enable a module if it is still in the registry
+             * awaiting enablement. parent module is passed in for context,
+             * used by the optimizer.
+             */
+            enable: function (depMap, parent) {
+                var mod = getOwn(registry, depMap.id);
+                if (mod) {
+                    getModule(depMap).enable();
+                }
+            },
+
+            /**
+             * Internal method used by environment adapters to complete a load event.
+             * A load event could be a script load or just a load pass from a synchronous
+             * load call.
+             * @param {String} moduleName the name of the module to potentially complete.
+             */
+            completeLoad: function (moduleName) {
+                var found, args, mod,
+                    shim = getOwn(config.shim, moduleName) || {},
+                    shExports = shim.exports;
+
+                takeGlobalQueue();
+
+                while (defQueue.length) {
+                    args = defQueue.shift();
+                    if (args[0] === null) {
+                        args[0] = moduleName;
+                        //If already found an anonymous module and bound it
+                        //to this name, then this is some other anon module
+                        //waiting for its completeLoad to fire.
+                        if (found) {
+                            break;
+                        }
+                        found = true;
+                    } else if (args[0] === moduleName) {
+                        //Found matching define call for this script!
+                        found = true;
+                    }
+
+                    callGetModule(args);
+                }
+
+                //Do this after the cycle of callGetModule in case the result
+                //of those calls/init calls changes the registry.
+                mod = getOwn(registry, moduleName);
+
+                if (!found && !hasProp(defined, moduleName) && mod && !mod.inited) {
+                    if (config.enforceDefine && (!shExports || !getGlobal(shExports))) {
+                        if (hasPathFallback(moduleName)) {
+                            return;
+                        } else {
+                            return onError(makeError('nodefine',
+                                             'No define call for ' + moduleName,
+                                             null,
+                                             [moduleName]));
+                        }
+                    } else {
+                        //A script that does not call define(), so just simulate
+                        //the call for it.
+                        callGetModule([moduleName, (shim.deps || []), shim.exportsFn]);
+                    }
+                }
+
+                checkLoaded();
+            },
+
+            /**
+             * Converts a module name to a file path. Supports cases where
+             * moduleName may actually be just an URL.
+             * Note that it **does not** call normalize on the moduleName,
+             * it is assumed to have already been normalized. This is an
+             * internal API, not a public one. Use toUrl for the public API.
+             */
+            nameToUrl: function (moduleName, ext) {
+                var paths, pkgs, pkg, pkgPath, syms, i, parentModule, url,
+                    parentPath;
+
+                //If a colon is in the URL, it indicates a protocol is used and it is just
+                //an URL to a file, or if it starts with a slash, contains a query arg (i.e. ?)
+                //or ends with .js, then assume the user meant to use an url and not a module id.
+                //The slash is important for protocol-less URLs as well as full paths.
+                if (req.jsExtRegExp.test(moduleName)) {
+                    //Just a plain path, not module name lookup, so just return it.
+                    //Add extension if it is included. This is a bit wonky, only non-.js things pass
+                    //an extension, this method probably needs to be reworked.
+                    url = moduleName + (ext || '');
+                } else {
+                    //A module that needs to be converted to a path.
+                    paths = config.paths;
+                    pkgs = config.pkgs;
+
+                    syms = moduleName.split('/');
+                    //For each module name segment, see if there is a path
+                    //registered for it. Start with most specific name
+                    //and work up from it.
+                    for (i = syms.length; i > 0; i -= 1) {
+                        parentModule = syms.slice(0, i).join('/');
+                        pkg = getOwn(pkgs, parentModule);
+                        parentPath = getOwn(paths, parentModule);
+                        if (parentPath) {
+                            //If an array, it means there are a few choices,
+                            //Choose the one that is desired
+                            if (isArray(parentPath)) {
+                                parentPath = parentPath[0];
+                            }
+                            syms.splice(0, i, parentPath);
+                            break;
+                        } else if (pkg) {
+                            //If module name is just the package name, then looking
+                            //for the main module.
+                            if (moduleName === pkg.name) {
+                                pkgPath = pkg.location + '/' + pkg.main;
+                            } else {
+                                pkgPath = pkg.location;
+                            }
+                            syms.splice(0, i, pkgPath);
+                            break;
+                        }
+                    }
+
+                    //Join the path parts together, then figure out if baseUrl is needed.
+                    url = syms.join('/');
+                    url += (ext || (/\?/.test(url) ? '' : '.js'));
+                    url = (url.charAt(0) === '/' || url.match(/^[\w\+\.\-]+:/) ? '' : config.baseUrl) + url;
+                }
+
+                return config.urlArgs ? url +
+                                        ((url.indexOf('?') === -1 ? '?' : '&') +
+                                         config.urlArgs) : url;
+            },
+
+            //Delegates to req.load. Broken out as a separate function to
+            //allow overriding in the optimizer.
+            load: function (id, url) {
+                req.load(context, id, url);
+            },
+
+            /**
+             * Executes a module callack function. Broken out as a separate function
+             * solely to allow the build system to sequence the files in the built
+             * layer in the right sequence.
+             *
+             * @private
+             */
+            execCb: function (name, callback, args, exports) {
+                return callback.apply(exports, args);
+            },
+
+            /**
+             * callback for script loads, used to check status of loading.
+             *
+             * @param {Event} evt the event from the browser for the script
+             * that was loaded.
+             */
+            onScriptLoad: function (evt) {
+                //Using currentTarget instead of target for Firefox 2.0's sake. Not
+                //all old browsers will be supported, but this one was easy enough
+                //to support and still makes sense.
+                if (evt.type === 'load' ||
+                        (readyRegExp.test((evt.currentTarget || evt.srcElement).readyState))) {
+                    //Reset interactive script so a script node is not held onto for
+                    //to long.
+                    interactiveScript = null;
+
+                    //Pull out the name of the module and the context.
+                    var data = getScriptData(evt);
+                    context.completeLoad(data.id);
+                }
+            },
+
+            /**
+             * Callback for script errors.
+             */
+            onScriptError: function (evt) {
+                var data = getScriptData(evt);
+                if (!hasPathFallback(data.id)) {
+                    return onError(makeError('scripterror', 'Script error', evt, [data.id]));
+                }
+            }
+        };
+
+        context.require = context.makeRequire();
+        return context;
+    }
+
+    /**
+     * Main entry point.
+     *
+     * If the only argument to require is a string, then the module that
+     * is represented by that string is fetched for the appropriate context.
+     *
+     * If the first argument is an array, then it will be treated as an array
+     * of dependency string names to fetch. An optional function callback can
+     * be specified to execute when all of those dependencies are available.
+     *
+     * Make a local req variable to help Caja compliance (it assumes things
+     * on a require that are not standardized), and to give a short
+     * name for minification/local scope use.
+     */
+    req = requirejs = function (deps, callback, errback, optional) {
+
+        //Find the right context, use default
+        var context, config,
+            contextName = defContextName;
+
+        // Determine if have config object in the call.
+        if (!isArray(deps) && typeof deps !== 'string') {
+            // deps is a config object
+            config = deps;
+            if (isArray(callback)) {
+                // Adjust args if there are dependencies
+                deps = callback;
+                callback = errback;
+                errback = optional;
+            } else {
+                deps = [];
+            }
+        }
+
+        if (config && config.context) {
+            contextName = config.context;
+        }
+
+        context = getOwn(contexts, contextName);
+        if (!context) {
+            context = contexts[contextName] = req.s.newContext(contextName);
+        }
+
+        if (config) {
+            context.configure(config);
+        }
+
+        return context.require(deps, callback, errback);
+    };
+
+    /**
+     * Support require.config() to make it easier to cooperate with other
+     * AMD loaders on globally agreed names.
+     */
+    req.config = function (config) {
+        return req(config);
+    };
+
+    /**
+     * Execute something after the current tick
+     * of the event loop. Override for other envs
+     * that have a better solution than setTimeout.
+     * @param  {Function} fn function to execute later.
+     */
+    req.nextTick = typeof setTimeout !== 'undefined' ? function (fn) {
+        setTimeout(fn, 4);
+    } : function (fn) { fn(); };
+
+    /**
+     * Export require as a global, but only if it does not already exist.
+     */
+    if (!require) {
+        require = req;
+    }
+
+    req.version = version;
+
+    //Used to filter out dependencies that are already paths.
+    req.jsExtRegExp = /^\/|:|\?|\.js$/;
+    req.isBrowser = isBrowser;
+    s = req.s = {
+        contexts: contexts,
+        newContext: newContext
+    };
+
+    //Create default context.
+    req({});
+
+    //Exports some context-sensitive methods on global require.
+    each([
+        'toUrl',
+        'undef',
+        'defined',
+        'specified'
+    ], function (prop) {
+        //Reference from contexts instead of early binding to default context,
+        //so that during builds, the latest instance of the default context
+        //with its config gets used.
+        req[prop] = function () {
+            var ctx = contexts[defContextName];
+            return ctx.require[prop].apply(ctx, arguments);
+        };
+    });
+
+    if (isBrowser) {
+        head = s.head = document.getElementsByTagName('head')[0];
+        //If BASE tag is in play, using appendChild is a problem for IE6.
+        //When that browser dies, this can be removed. Details in this jQuery bug:
+        //http://dev.jquery.com/ticket/2709
+        baseElement = document.getElementsByTagName('base')[0];
+        if (baseElement) {
+            head = s.head = baseElement.parentNode;
+        }
+    }
+
+    /**
+     * Any errors that require explicitly generates will be passed to this
+     * function. Intercept/override it if you want custom error handling.
+     * @param {Error} err the error object.
+     */
+    req.onError = function (err) {
+        throw err;
+    };
+
+    /**
+     * Does the request to load a module for the browser case.
+     * Make this a separate function to allow other environments
+     * to override it.
+     *
+     * @param {Object} context the require context to find state.
+     * @param {String} moduleName the name of the module.
+     * @param {Object} url the URL to the module.
+     */
+    req.load = function (context, moduleName, url) {
+        var config = (context && context.config) || {},
+            node;
+        if (isBrowser) {
+            //In the browser so use a script tag
+            node = config.xhtml ?
+                    document.createElementNS('http://www.w3.org/1999/xhtml', 'html:script') :
+                    document.createElement('script');
+            node.type = config.scriptType || 'text/javascript';
+            node.charset = 'utf-8';
+            node.async = true;
+
+            node.setAttribute('data-requirecontext', context.contextName);
+            node.setAttribute('data-requiremodule', moduleName);
+
+            //Set up load listener. Test attachEvent first because IE9 has
+            //a subtle issue in its addEventListener and script onload firings
+            //that do not match the behavior of all other browsers with
+            //addEventListener support, which fire the onload event for a
+            //script right after the script execution. See:
+            //https://connect.microsoft.com/IE/feedback/details/648057/script-onload-event-is-not-fired-immediately-after-script-execution
+            //UNFORTUNATELY Opera implements attachEvent but does not follow the script
+            //script execution mode.
+            if (node.attachEvent &&
+                    //Check if node.attachEvent is artificially added by custom script or
+                    //natively supported by browser
+                    //read https://github.com/jrburke/requirejs/issues/187
+                    //if we can NOT find [native code] then it must NOT natively supported.
+                    //in IE8, node.attachEvent does not have toString()
+                    //Note the test for "[native code" with no closing brace, see:
+                    //https://github.com/jrburke/requirejs/issues/273
+                    !(node.attachEvent.toString && node.attachEvent.toString().indexOf('[native code') < 0) &&
+                    !isOpera) {
+                //Probably IE. IE (at least 6-8) do not fire
+                //script onload right after executing the script, so
+                //we cannot tie the anonymous define call to a name.
+                //However, IE reports the script as being in 'interactive'
+                //readyState at the time of the define call.
+                useInteractive = true;
+
+                node.attachEvent('onreadystatechange', context.onScriptLoad);
+                //It would be great to add an error handler here to catch
+                //404s in IE9+. However, onreadystatechange will fire before
+                //the error handler, so that does not help. If addEvenListener
+                //is used, then IE will fire error before load, but we cannot
+                //use that pathway given the connect.microsoft.com issue
+                //mentioned above about not doing the 'script execute,
+                //then fire the script load event listener before execute
+                //next script' that other browsers do.
+                //Best hope: IE10 fixes the issues,
+                //and then destroys all installs of IE 6-9.
+                //node.attachEvent('onerror', context.onScriptError);
+            } else {
+                node.addEventListener('load', context.onScriptLoad, false);
+                node.addEventListener('error', context.onScriptError, false);
+            }
+            node.src = url;
+
+            //For some cache cases in IE 6-8, the script executes before the end
+            //of the appendChild execution, so to tie an anonymous define
+            //call to the module name (which is stored on the node), hold on
+            //to a reference to this node, but clear after the DOM insertion.
+            currentlyAddingScript = node;
+            if (baseElement) {
+                head.insertBefore(node, baseElement);
+            } else {
+                head.appendChild(node);
+            }
+            currentlyAddingScript = null;
+
+            return node;
+        } else if (isWebWorker) {
+            //In a web worker, use importScripts. This is not a very
+            //efficient use of importScripts, importScripts will block until
+            //its script is downloaded and evaluated. However, if web workers
+            //are in play, the expectation that a build has been done so that
+            //only one script needs to be loaded anyway. This may need to be
+            //reevaluated if other use cases become common.
+            importScripts(url);
+
+            //Account for anonymous modules
+            context.completeLoad(moduleName);
+        }
+    };
+
+    function getInteractiveScript() {
+        if (interactiveScript && interactiveScript.readyState === 'interactive') {
+            return interactiveScript;
+        }
+
+        eachReverse(scripts(), function (script) {
+            if (script.readyState === 'interactive') {
+                return (interactiveScript = script);
+            }
+        });
+        return interactiveScript;
+    }
+
+    //Look for a data-main script attribute, which could also adjust the baseUrl.
+    if (isBrowser) {
+        //Figure out baseUrl. Get it from the script tag with require.js in it.
+        eachReverse(scripts(), function (script) {
+            //Set the 'head' where we can append children by
+            //using the script's parent.
+            if (!head) {
+                head = script.parentNode;
+            }
+
+            //Look for a data-main attribute to set main script for the page
+            //to load. If it is there, the path to data main becomes the
+            //baseUrl, if it is not already set.
+            dataMain = script.getAttribute('data-main');
+            if (dataMain) {
+                //Set final baseUrl if there is not already an explicit one.
+                if (!cfg.baseUrl) {
+                    //Pull off the directory of data-main for use as the
+                    //baseUrl.
+                    src = dataMain.split('/');
+                    mainScript = src.pop();
+                    subPath = src.length ? src.join('/')  + '/' : './';
+
+                    cfg.baseUrl = subPath;
+                    dataMain = mainScript;
+                }
+
+                //Strip off any trailing .js since dataMain is now
+                //like a module name.
+                dataMain = dataMain.replace(jsSuffixRegExp, '');
+
+                //Put the data-main script in the files to load.
+                cfg.deps = cfg.deps ? cfg.deps.concat(dataMain) : [dataMain];
+
+                return true;
+            }
+        });
+    }
+
+    /**
+     * The function that handles definitions of modules. Differs from
+     * require() in that a string for the module should be the first argument,
+     * and the function to execute after dependencies are loaded should
+     * return a value to define the module corresponding to the first argument's
+     * name.
+     */
+    define = function (name, deps, callback) {
+        var node, context;
+
+        //Allow for anonymous modules
+        if (typeof name !== 'string') {
+            //Adjust args appropriately
+            callback = deps;
+            deps = name;
+            name = null;
+        }
+
+        //This module may not have dependencies
+        if (!isArray(deps)) {
+            callback = deps;
+            deps = [];
+        }
+
+        //If no name, and callback is a function, then figure out if it a
+        //CommonJS thing with dependencies.
+        if (!deps.length && isFunction(callback)) {
+            //Remove comments from the callback string,
+            //look for require calls, and pull them into the dependencies,
+            //but only if there are function args.
+            if (callback.length) {
+                callback
+                    .toString()
+                    .replace(commentRegExp, '')
+                    .replace(cjsRequireRegExp, function (match, dep) {
+                        deps.push(dep);
+                    });
+
+                //May be a CommonJS thing even without require calls, but still
+                //could use exports, and module. Avoid doing exports and module
+                //work though if it just needs require.
+                //REQUIRES the function to expect the CommonJS variables in the
+                //order listed below.
+                deps = (callback.length === 1 ? ['require'] : ['require', 'exports', 'module']).concat(deps);
+            }
+        }
+
+        //If in IE 6-8 and hit an anonymous define() call, do the interactive
+        //work.
+        if (useInteractive) {
+            node = currentlyAddingScript || getInteractiveScript();
+            if (node) {
+                if (!name) {
+                    name = node.getAttribute('data-requiremodule');
+                }
+                context = contexts[node.getAttribute('data-requirecontext')];
+            }
+        }
+
+        //Always save off evaluating the def call until the script onload handler.
+        //This allows multiple modules to be in a file without prematurely
+        //tracing dependencies, and allows for anonymous module support,
+        //where the module name is not known until the script onload event
+        //occurs. If no context, use the global queue, and get it processed
+        //in the onscript load callback.
+        (context ? context.defQueue : globalDefQueue).push([name, deps, callback]);
+    };
+
+    define.amd = {
+        jQuery: true
+    };
+
+
+    /**
+     * Executes the text. Normally just uses eval, but can be modified
+     * to use a better, environment-specific call. Only used for transpiling
+     * loader plugins, not for plain JS modules.
+     * @param {String} text the text to execute/evaluate.
+     */
+    req.exec = function (text) {
+        /*jslint evil: true */
+        return eval(text);
+    };
+
+    //Set up with config info.
+    req(cfg);
+}(this));
\ No newline at end of file
diff --git a/addons/im_livechat/static/ext/static/js/to_jsonp.py b/addons/im_livechat/static/ext/static/js/to_jsonp.py
new file mode 100644
index 00000000000..61f1a885768
--- /dev/null
+++ b/addons/im_livechat/static/ext/static/js/to_jsonp.py
@@ -0,0 +1,12 @@
+
+import sys
+import json
+
+file_name = sys.argv[1]
+function_name = sys.argv[2]
+
+with open(file_name) as file_:
+    content = file_.read()
+
+print "window.%s(%s);" % (function_name, json.dumps(content))
+
diff --git a/addons/im_livechat/static/ext/static/js/underscore.js b/addons/im_livechat/static/ext/static/js/underscore.js
new file mode 100644
index 00000000000..c2517054bfb
--- /dev/null
+++ b/addons/im_livechat/static/ext/static/js/underscore.js
@@ -0,0 +1,1221 @@
+//     Underscore.js 1.4.3
+//     http://underscorejs.org
+//     (c) 2009-2012 Jeremy Ashkenas, DocumentCloud Inc.
+//     Underscore may be freely distributed under the MIT license.
+
+(function() {
+
+  // Baseline setup
+  // --------------
+
+  // Establish the root object, `window` in the browser, or `global` on the server.
+  var root = this;
+
+  // Save the previous value of the `_` variable.
+  var previousUnderscore = root._;
+
+  // Establish the object that gets returned to break out of a loop iteration.
+  var breaker = {};
+
+  // Save bytes in the minified (but not gzipped) version:
+  var ArrayProto = Array.prototype, ObjProto = Object.prototype, FuncProto = Function.prototype;
+
+  // Create quick reference variables for speed access to core prototypes.
+  var push             = ArrayProto.push,
+      slice            = ArrayProto.slice,
+      concat           = ArrayProto.concat,
+      toString         = ObjProto.toString,
+      hasOwnProperty   = ObjProto.hasOwnProperty;
+
+  // All **ECMAScript 5** native function implementations that we hope to use
+  // are declared here.
+  var
+    nativeForEach      = ArrayProto.forEach,
+    nativeMap          = ArrayProto.map,
+    nativeReduce       = ArrayProto.reduce,
+    nativeReduceRight  = ArrayProto.reduceRight,
+    nativeFilter       = ArrayProto.filter,
+    nativeEvery        = ArrayProto.every,
+    nativeSome         = ArrayProto.some,
+    nativeIndexOf      = ArrayProto.indexOf,
+    nativeLastIndexOf  = ArrayProto.lastIndexOf,
+    nativeIsArray      = Array.isArray,
+    nativeKeys         = Object.keys,
+    nativeBind         = FuncProto.bind;
+
+  // Create a safe reference to the Underscore object for use below.
+  var _ = function(obj) {
+    if (obj instanceof _) return obj;
+    if (!(this instanceof _)) return new _(obj);
+    this._wrapped = obj;
+  };
+
+  // Export the Underscore object for **Node.js**, with
+  // backwards-compatibility for the old `require()` API. If we're in
+  // the browser, add `_` as a global object via a string identifier,
+  // for Closure Compiler "advanced" mode.
+  if (typeof exports !== 'undefined') {
+    if (typeof module !== 'undefined' && module.exports) {
+      exports = module.exports = _;
+    }
+    exports._ = _;
+  } else {
+    root._ = _;
+  }
+
+  // Current version.
+  _.VERSION = '1.4.3';
+
+  // Collection Functions
+  // --------------------
+
+  // The cornerstone, an `each` implementation, aka `forEach`.
+  // Handles objects with the built-in `forEach`, arrays, and raw objects.
+  // Delegates to **ECMAScript 5**'s native `forEach` if available.
+  var each = _.each = _.forEach = function(obj, iterator, context) {
+    if (obj == null) return;
+    if (nativeForEach && obj.forEach === nativeForEach) {
+      obj.forEach(iterator, context);
+    } else if (obj.length === +obj.length) {
+      for (var i = 0, l = obj.length; i < l; i++) {
+        if (iterator.call(context, obj[i], i, obj) === breaker) return;
+      }
+    } else {
+      for (var key in obj) {
+        if (_.has(obj, key)) {
+          if (iterator.call(context, obj[key], key, obj) === breaker) return;
+        }
+      }
+    }
+  };
+
+  // Return the results of applying the iterator to each element.
+  // Delegates to **ECMAScript 5**'s native `map` if available.
+  _.map = _.collect = function(obj, iterator, context) {
+    var results = [];
+    if (obj == null) return results;
+    if (nativeMap && obj.map === nativeMap) return obj.map(iterator, context);
+    each(obj, function(value, index, list) {
+      results[results.length] = iterator.call(context, value, index, list);
+    });
+    return results;
+  };
+
+  var reduceError = 'Reduce of empty array with no initial value';
+
+  // **Reduce** builds up a single result from a list of values, aka `inject`,
+  // or `foldl`. Delegates to **ECMAScript 5**'s native `reduce` if available.
+  _.reduce = _.foldl = _.inject = function(obj, iterator, memo, context) {
+    var initial = arguments.length > 2;
+    if (obj == null) obj = [];
+    if (nativeReduce && obj.reduce === nativeReduce) {
+      if (context) iterator = _.bind(iterator, context);
+      return initial ? obj.reduce(iterator, memo) : obj.reduce(iterator);
+    }
+    each(obj, function(value, index, list) {
+      if (!initial) {
+        memo = value;
+        initial = true;
+      } else {
+        memo = iterator.call(context, memo, value, index, list);
+      }
+    });
+    if (!initial) throw new TypeError(reduceError);
+    return memo;
+  };
+
+  // The right-associative version of reduce, also known as `foldr`.
+  // Delegates to **ECMAScript 5**'s native `reduceRight` if available.
+  _.reduceRight = _.foldr = function(obj, iterator, memo, context) {
+    var initial = arguments.length > 2;
+    if (obj == null) obj = [];
+    if (nativeReduceRight && obj.reduceRight === nativeReduceRight) {
+      if (context) iterator = _.bind(iterator, context);
+      return initial ? obj.reduceRight(iterator, memo) : obj.reduceRight(iterator);
+    }
+    var length = obj.length;
+    if (length !== +length) {
+      var keys = _.keys(obj);
+      length = keys.length;
+    }
+    each(obj, function(value, index, list) {
+      index = keys ? keys[--length] : --length;
+      if (!initial) {
+        memo = obj[index];
+        initial = true;
+      } else {
+        memo = iterator.call(context, memo, obj[index], index, list);
+      }
+    });
+    if (!initial) throw new TypeError(reduceError);
+    return memo;
+  };
+
+  // Return the first value which passes a truth test. Aliased as `detect`.
+  _.find = _.detect = function(obj, iterator, context) {
+    var result;
+    any(obj, function(value, index, list) {
+      if (iterator.call(context, value, index, list)) {
+        result = value;
+        return true;
+      }
+    });
+    return result;
+  };
+
+  // Return all the elements that pass a truth test.
+  // Delegates to **ECMAScript 5**'s native `filter` if available.
+  // Aliased as `select`.
+  _.filter = _.select = function(obj, iterator, context) {
+    var results = [];
+    if (obj == null) return results;
+    if (nativeFilter && obj.filter === nativeFilter) return obj.filter(iterator, context);
+    each(obj, function(value, index, list) {
+      if (iterator.call(context, value, index, list)) results[results.length] = value;
+    });
+    return results;
+  };
+
+  // Return all the elements for which a truth test fails.
+  _.reject = function(obj, iterator, context) {
+    return _.filter(obj, function(value, index, list) {
+      return !iterator.call(context, value, index, list);
+    }, context);
+  };
+
+  // Determine whether all of the elements match a truth test.
+  // Delegates to **ECMAScript 5**'s native `every` if available.
+  // Aliased as `all`.
+  _.every = _.all = function(obj, iterator, context) {
+    iterator || (iterator = _.identity);
+    var result = true;
+    if (obj == null) return result;
+    if (nativeEvery && obj.every === nativeEvery) return obj.every(iterator, context);
+    each(obj, function(value, index, list) {
+      if (!(result = result && iterator.call(context, value, index, list))) return breaker;
+    });
+    return !!result;
+  };
+
+  // Determine if at least one element in the object matches a truth test.
+  // Delegates to **ECMAScript 5**'s native `some` if available.
+  // Aliased as `any`.
+  var any = _.some = _.any = function(obj, iterator, context) {
+    iterator || (iterator = _.identity);
+    var result = false;
+    if (obj == null) return result;
+    if (nativeSome && obj.some === nativeSome) return obj.some(iterator, context);
+    each(obj, function(value, index, list) {
+      if (result || (result = iterator.call(context, value, index, list))) return breaker;
+    });
+    return !!result;
+  };
+
+  // Determine if the array or object contains a given value (using `===`).
+  // Aliased as `include`.
+  _.contains = _.include = function(obj, target) {
+    if (obj == null) return false;
+    if (nativeIndexOf && obj.indexOf === nativeIndexOf) return obj.indexOf(target) != -1;
+    return any(obj, function(value) {
+      return value === target;
+    });
+  };
+
+  // Invoke a method (with arguments) on every item in a collection.
+  _.invoke = function(obj, method) {
+    var args = slice.call(arguments, 2);
+    return _.map(obj, function(value) {
+      return (_.isFunction(method) ? method : value[method]).apply(value, args);
+    });
+  };
+
+  // Convenience version of a common use case of `map`: fetching a property.
+  _.pluck = function(obj, key) {
+    return _.map(obj, function(value){ return value[key]; });
+  };
+
+  // Convenience version of a common use case of `filter`: selecting only objects
+  // with specific `key:value` pairs.
+  _.where = function(obj, attrs) {
+    if (_.isEmpty(attrs)) return [];
+    return _.filter(obj, function(value) {
+      for (var key in attrs) {
+        if (attrs[key] !== value[key]) return false;
+      }
+      return true;
+    });
+  };
+
+  // Return the maximum element or (element-based computation).
+  // Can't optimize arrays of integers longer than 65,535 elements.
+  // See: https://bugs.webkit.org/show_bug.cgi?id=80797
+  _.max = function(obj, iterator, context) {
+    if (!iterator && _.isArray(obj) && obj[0] === +obj[0] && obj.length < 65535) {
+      return Math.max.apply(Math, obj);
+    }
+    if (!iterator && _.isEmpty(obj)) return -Infinity;
+    var result = {computed : -Infinity, value: -Infinity};
+    each(obj, function(value, index, list) {
+      var computed = iterator ? iterator.call(context, value, index, list) : value;
+      computed >= result.computed && (result = {value : value, computed : computed});
+    });
+    return result.value;
+  };
+
+  // Return the minimum element (or element-based computation).
+  _.min = function(obj, iterator, context) {
+    if (!iterator && _.isArray(obj) && obj[0] === +obj[0] && obj.length < 65535) {
+      return Math.min.apply(Math, obj);
+    }
+    if (!iterator && _.isEmpty(obj)) return Infinity;
+    var result = {computed : Infinity, value: Infinity};
+    each(obj, function(value, index, list) {
+      var computed = iterator ? iterator.call(context, value, index, list) : value;
+      computed < result.computed && (result = {value : value, computed : computed});
+    });
+    return result.value;
+  };
+
+  // Shuffle an array.
+  _.shuffle = function(obj) {
+    var rand;
+    var index = 0;
+    var shuffled = [];
+    each(obj, function(value) {
+      rand = _.random(index++);
+      shuffled[index - 1] = shuffled[rand];
+      shuffled[rand] = value;
+    });
+    return shuffled;
+  };
+
+  // An internal function to generate lookup iterators.
+  var lookupIterator = function(value) {
+    return _.isFunction(value) ? value : function(obj){ return obj[value]; };
+  };
+
+  // Sort the object's values by a criterion produced by an iterator.
+  _.sortBy = function(obj, value, context) {
+    var iterator = lookupIterator(value);
+    return _.pluck(_.map(obj, function(value, index, list) {
+      return {
+        value : value,
+        index : index,
+        criteria : iterator.call(context, value, index, list)
+      };
+    }).sort(function(left, right) {
+      var a = left.criteria;
+      var b = right.criteria;
+      if (a !== b) {
+        if (a > b || a === void 0) return 1;
+        if (a < b || b === void 0) return -1;
+      }
+      return left.index < right.index ? -1 : 1;
+    }), 'value');
+  };
+
+  // An internal function used for aggregate "group by" operations.
+  var group = function(obj, value, context, behavior) {
+    var result = {};
+    var iterator = lookupIterator(value || _.identity);
+    each(obj, function(value, index) {
+      var key = iterator.call(context, value, index, obj);
+      behavior(result, key, value);
+    });
+    return result;
+  };
+
+  // Groups the object's values by a criterion. Pass either a string attribute
+  // to group by, or a function that returns the criterion.
+  _.groupBy = function(obj, value, context) {
+    return group(obj, value, context, function(result, key, value) {
+      (_.has(result, key) ? result[key] : (result[key] = [])).push(value);
+    });
+  };
+
+  // Counts instances of an object that group by a certain criterion. Pass
+  // either a string attribute to count by, or a function that returns the
+  // criterion.
+  _.countBy = function(obj, value, context) {
+    return group(obj, value, context, function(result, key) {
+      if (!_.has(result, key)) result[key] = 0;
+      result[key]++;
+    });
+  };
+
+  // Use a comparator function to figure out the smallest index at which
+  // an object should be inserted so as to maintain order. Uses binary search.
+  _.sortedIndex = function(array, obj, iterator, context) {
+    iterator = iterator == null ? _.identity : lookupIterator(iterator);
+    var value = iterator.call(context, obj);
+    var low = 0, high = array.length;
+    while (low < high) {
+      var mid = (low + high) >>> 1;
+      iterator.call(context, array[mid]) < value ? low = mid + 1 : high = mid;
+    }
+    return low;
+  };
+
+  // Safely convert anything iterable into a real, live array.
+  _.toArray = function(obj) {
+    if (!obj) return [];
+    if (_.isArray(obj)) return slice.call(obj);
+    if (obj.length === +obj.length) return _.map(obj, _.identity);
+    return _.values(obj);
+  };
+
+  // Return the number of elements in an object.
+  _.size = function(obj) {
+    if (obj == null) return 0;
+    return (obj.length === +obj.length) ? obj.length : _.keys(obj).length;
+  };
+
+  // Array Functions
+  // ---------------
+
+  // Get the first element of an array. Passing **n** will return the first N
+  // values in the array. Aliased as `head` and `take`. The **guard** check
+  // allows it to work with `_.map`.
+  _.first = _.head = _.take = function(array, n, guard) {
+    if (array == null) return void 0;
+    return (n != null) && !guard ? slice.call(array, 0, n) : array[0];
+  };
+
+  // Returns everything but the last entry of the array. Especially useful on
+  // the arguments object. Passing **n** will return all the values in
+  // the array, excluding the last N. The **guard** check allows it to work with
+  // `_.map`.
+  _.initial = function(array, n, guard) {
+    return slice.call(array, 0, array.length - ((n == null) || guard ? 1 : n));
+  };
+
+  // Get the last element of an array. Passing **n** will return the last N
+  // values in the array. The **guard** check allows it to work with `_.map`.
+  _.last = function(array, n, guard) {
+    if (array == null) return void 0;
+    if ((n != null) && !guard) {
+      return slice.call(array, Math.max(array.length - n, 0));
+    } else {
+      return array[array.length - 1];
+    }
+  };
+
+  // Returns everything but the first entry of the array. Aliased as `tail` and `drop`.
+  // Especially useful on the arguments object. Passing an **n** will return
+  // the rest N values in the array. The **guard**
+  // check allows it to work with `_.map`.
+  _.rest = _.tail = _.drop = function(array, n, guard) {
+    return slice.call(array, (n == null) || guard ? 1 : n);
+  };
+
+  // Trim out all falsy values from an array.
+  _.compact = function(array) {
+    return _.filter(array, _.identity);
+  };
+
+  // Internal implementation of a recursive `flatten` function.
+  var flatten = function(input, shallow, output) {
+    each(input, function(value) {
+      if (_.isArray(value)) {
+        shallow ? push.apply(output, value) : flatten(value, shallow, output);
+      } else {
+        output.push(value);
+      }
+    });
+    return output;
+  };
+
+  // Return a completely flattened version of an array.
+  _.flatten = function(array, shallow) {
+    return flatten(array, shallow, []);
+  };
+
+  // Return a version of the array that does not contain the specified value(s).
+  _.without = function(array) {
+    return _.difference(array, slice.call(arguments, 1));
+  };
+
+  // Produce a duplicate-free version of the array. If the array has already
+  // been sorted, you have the option of using a faster algorithm.
+  // Aliased as `unique`.
+  _.uniq = _.unique = function(array, isSorted, iterator, context) {
+    if (_.isFunction(isSorted)) {
+      context = iterator;
+      iterator = isSorted;
+      isSorted = false;
+    }
+    var initial = iterator ? _.map(array, iterator, context) : array;
+    var results = [];
+    var seen = [];
+    each(initial, function(value, index) {
+      if (isSorted ? (!index || seen[seen.length - 1] !== value) : !_.contains(seen, value)) {
+        seen.push(value);
+        results.push(array[index]);
+      }
+    });
+    return results;
+  };
+
+  // Produce an array that contains the union: each distinct element from all of
+  // the passed-in arrays.
+  _.union = function() {
+    return _.uniq(concat.apply(ArrayProto, arguments));
+  };
+
+  // Produce an array that contains every item shared between all the
+  // passed-in arrays.
+  _.intersection = function(array) {
+    var rest = slice.call(arguments, 1);
+    return _.filter(_.uniq(array), function(item) {
+      return _.every(rest, function(other) {
+        return _.indexOf(other, item) >= 0;
+      });
+    });
+  };
+
+  // Take the difference between one array and a number of other arrays.
+  // Only the elements present in just the first array will remain.
+  _.difference = function(array) {
+    var rest = concat.apply(ArrayProto, slice.call(arguments, 1));
+    return _.filter(array, function(value){ return !_.contains(rest, value); });
+  };
+
+  // Zip together multiple lists into a single array -- elements that share
+  // an index go together.
+  _.zip = function() {
+    var args = slice.call(arguments);
+    var length = _.max(_.pluck(args, 'length'));
+    var results = new Array(length);
+    for (var i = 0; i < length; i++) {
+      results[i] = _.pluck(args, "" + i);
+    }
+    return results;
+  };
+
+  // Converts lists into objects. Pass either a single array of `[key, value]`
+  // pairs, or two parallel arrays of the same length -- one of keys, and one of
+  // the corresponding values.
+  _.object = function(list, values) {
+    if (list == null) return {};
+    var result = {};
+    for (var i = 0, l = list.length; i < l; i++) {
+      if (values) {
+        result[list[i]] = values[i];
+      } else {
+        result[list[i][0]] = list[i][1];
+      }
+    }
+    return result;
+  };
+
+  // If the browser doesn't supply us with indexOf (I'm looking at you, **MSIE**),
+  // we need this function. Return the position of the first occurrence of an
+  // item in an array, or -1 if the item is not included in the array.
+  // Delegates to **ECMAScript 5**'s native `indexOf` if available.
+  // If the array is large and already in sort order, pass `true`
+  // for **isSorted** to use binary search.
+  _.indexOf = function(array, item, isSorted) {
+    if (array == null) return -1;
+    var i = 0, l = array.length;
+    if (isSorted) {
+      if (typeof isSorted == 'number') {
+        i = (isSorted < 0 ? Math.max(0, l + isSorted) : isSorted);
+      } else {
+        i = _.sortedIndex(array, item);
+        return array[i] === item ? i : -1;
+      }
+    }
+    if (nativeIndexOf && array.indexOf === nativeIndexOf) return array.indexOf(item, isSorted);
+    for (; i < l; i++) if (array[i] === item) return i;
+    return -1;
+  };
+
+  // Delegates to **ECMAScript 5**'s native `lastIndexOf` if available.
+  _.lastIndexOf = function(array, item, from) {
+    if (array == null) return -1;
+    var hasIndex = from != null;
+    if (nativeLastIndexOf && array.lastIndexOf === nativeLastIndexOf) {
+      return hasIndex ? array.lastIndexOf(item, from) : array.lastIndexOf(item);
+    }
+    var i = (hasIndex ? from : array.length);
+    while (i--) if (array[i] === item) return i;
+    return -1;
+  };
+
+  // Generate an integer Array containing an arithmetic progression. A port of
+  // the native Python `range()` function. See
+  // [the Python documentation](http://docs.python.org/library/functions.html#range).
+  _.range = function(start, stop, step) {
+    if (arguments.length <= 1) {
+      stop = start || 0;
+      start = 0;
+    }
+    step = arguments[2] || 1;
+
+    var len = Math.max(Math.ceil((stop - start) / step), 0);
+    var idx = 0;
+    var range = new Array(len);
+
+    while(idx < len) {
+      range[idx++] = start;
+      start += step;
+    }
+
+    return range;
+  };
+
+  // Function (ahem) Functions
+  // ------------------
+
+  // Reusable constructor function for prototype setting.
+  var ctor = function(){};
+
+  // Create a function bound to a given object (assigning `this`, and arguments,
+  // optionally). Binding with arguments is also known as `curry`.
+  // Delegates to **ECMAScript 5**'s native `Function.bind` if available.
+  // We check for `func.bind` first, to fail fast when `func` is undefined.
+  _.bind = function(func, context) {
+    var args, bound;
+    if (func.bind === nativeBind && nativeBind) return nativeBind.apply(func, slice.call(arguments, 1));
+    if (!_.isFunction(func)) throw new TypeError;
+    args = slice.call(arguments, 2);
+    return bound = function() {
+      if (!(this instanceof bound)) return func.apply(context, args.concat(slice.call(arguments)));
+      ctor.prototype = func.prototype;
+      var self = new ctor;
+      ctor.prototype = null;
+      var result = func.apply(self, args.concat(slice.call(arguments)));
+      if (Object(result) === result) return result;
+      return self;
+    };
+  };
+
+  // Bind all of an object's methods to that object. Useful for ensuring that
+  // all callbacks defined on an object belong to it.
+  _.bindAll = function(obj) {
+    var funcs = slice.call(arguments, 1);
+    if (funcs.length == 0) funcs = _.functions(obj);
+    each(funcs, function(f) { obj[f] = _.bind(obj[f], obj); });
+    return obj;
+  };
+
+  // Memoize an expensive function by storing its results.
+  _.memoize = function(func, hasher) {
+    var memo = {};
+    hasher || (hasher = _.identity);
+    return function() {
+      var key = hasher.apply(this, arguments);
+      return _.has(memo, key) ? memo[key] : (memo[key] = func.apply(this, arguments));
+    };
+  };
+
+  // Delays a function for the given number of milliseconds, and then calls
+  // it with the arguments supplied.
+  _.delay = function(func, wait) {
+    var args = slice.call(arguments, 2);
+    return setTimeout(function(){ return func.apply(null, args); }, wait);
+  };
+
+  // Defers a function, scheduling it to run after the current call stack has
+  // cleared.
+  _.defer = function(func) {
+    return _.delay.apply(_, [func, 1].concat(slice.call(arguments, 1)));
+  };
+
+  // Returns a function, that, when invoked, will only be triggered at most once
+  // during a given window of time.
+  _.throttle = function(func, wait) {
+    var context, args, timeout, result;
+    var previous = 0;
+    var later = function() {
+      previous = new Date;
+      timeout = null;
+      result = func.apply(context, args);
+    };
+    return function() {
+      var now = new Date;
+      var remaining = wait - (now - previous);
+      context = this;
+      args = arguments;
+      if (remaining <= 0) {
+        clearTimeout(timeout);
+        timeout = null;
+        previous = now;
+        result = func.apply(context, args);
+      } else if (!timeout) {
+        timeout = setTimeout(later, remaining);
+      }
+      return result;
+    };
+  };
+
+  // Returns a function, that, as long as it continues to be invoked, will not
+  // be triggered. The function will be called after it stops being called for
+  // N milliseconds. If `immediate` is passed, trigger the function on the
+  // leading edge, instead of the trailing.
+  _.debounce = function(func, wait, immediate) {
+    var timeout, result;
+    return function() {
+      var context = this, args = arguments;
+      var later = function() {
+        timeout = null;
+        if (!immediate) result = func.apply(context, args);
+      };
+      var callNow = immediate && !timeout;
+      clearTimeout(timeout);
+      timeout = setTimeout(later, wait);
+      if (callNow) result = func.apply(context, args);
+      return result;
+    };
+  };
+
+  // Returns a function that will be executed at most one time, no matter how
+  // often you call it. Useful for lazy initialization.
+  _.once = function(func) {
+    var ran = false, memo;
+    return function() {
+      if (ran) return memo;
+      ran = true;
+      memo = func.apply(this, arguments);
+      func = null;
+      return memo;
+    };
+  };
+
+  // Returns the first function passed as an argument to the second,
+  // allowing you to adjust arguments, run code before and after, and
+  // conditionally execute the original function.
+  _.wrap = function(func, wrapper) {
+    return function() {
+      var args = [func];
+      push.apply(args, arguments);
+      return wrapper.apply(this, args);
+    };
+  };
+
+  // Returns a function that is the composition of a list of functions, each
+  // consuming the return value of the function that follows.
+  _.compose = function() {
+    var funcs = arguments;
+    return function() {
+      var args = arguments;
+      for (var i = funcs.length - 1; i >= 0; i--) {
+        args = [funcs[i].apply(this, args)];
+      }
+      return args[0];
+    };
+  };
+
+  // Returns a function that will only be executed after being called N times.
+  _.after = function(times, func) {
+    if (times <= 0) return func();
+    return function() {
+      if (--times < 1) {
+        return func.apply(this, arguments);
+      }
+    };
+  };
+
+  // Object Functions
+  // ----------------
+
+  // Retrieve the names of an object's properties.
+  // Delegates to **ECMAScript 5**'s native `Object.keys`
+  _.keys = nativeKeys || function(obj) {
+    if (obj !== Object(obj)) throw new TypeError('Invalid object');
+    var keys = [];
+    for (var key in obj) if (_.has(obj, key)) keys[keys.length] = key;
+    return keys;
+  };
+
+  // Retrieve the values of an object's properties.
+  _.values = function(obj) {
+    var values = [];
+    for (var key in obj) if (_.has(obj, key)) values.push(obj[key]);
+    return values;
+  };
+
+  // Convert an object into a list of `[key, value]` pairs.
+  _.pairs = function(obj) {
+    var pairs = [];
+    for (var key in obj) if (_.has(obj, key)) pairs.push([key, obj[key]]);
+    return pairs;
+  };
+
+  // Invert the keys and values of an object. The values must be serializable.
+  _.invert = function(obj) {
+    var result = {};
+    for (var key in obj) if (_.has(obj, key)) result[obj[key]] = key;
+    return result;
+  };
+
+  // Return a sorted list of the function names available on the object.
+  // Aliased as `methods`
+  _.functions = _.methods = function(obj) {
+    var names = [];
+    for (var key in obj) {
+      if (_.isFunction(obj[key])) names.push(key);
+    }
+    return names.sort();
+  };
+
+  // Extend a given object with all the properties in passed-in object(s).
+  _.extend = function(obj) {
+    each(slice.call(arguments, 1), function(source) {
+      if (source) {
+        for (var prop in source) {
+          obj[prop] = source[prop];
+        }
+      }
+    });
+    return obj;
+  };
+
+  // Return a copy of the object only containing the whitelisted properties.
+  _.pick = function(obj) {
+    var copy = {};
+    var keys = concat.apply(ArrayProto, slice.call(arguments, 1));
+    each(keys, function(key) {
+      if (key in obj) copy[key] = obj[key];
+    });
+    return copy;
+  };
+
+   // Return a copy of the object without the blacklisted properties.
+  _.omit = function(obj) {
+    var copy = {};
+    var keys = concat.apply(ArrayProto, slice.call(arguments, 1));
+    for (var key in obj) {
+      if (!_.contains(keys, key)) copy[key] = obj[key];
+    }
+    return copy;
+  };
+
+  // Fill in a given object with default properties.
+  _.defaults = function(obj) {
+    each(slice.call(arguments, 1), function(source) {
+      if (source) {
+        for (var prop in source) {
+          if (obj[prop] == null) obj[prop] = source[prop];
+        }
+      }
+    });
+    return obj;
+  };
+
+  // Create a (shallow-cloned) duplicate of an object.
+  _.clone = function(obj) {
+    if (!_.isObject(obj)) return obj;
+    return _.isArray(obj) ? obj.slice() : _.extend({}, obj);
+  };
+
+  // Invokes interceptor with the obj, and then returns obj.
+  // The primary purpose of this method is to "tap into" a method chain, in
+  // order to perform operations on intermediate results within the chain.
+  _.tap = function(obj, interceptor) {
+    interceptor(obj);
+    return obj;
+  };
+
+  // Internal recursive comparison function for `isEqual`.
+  var eq = function(a, b, aStack, bStack) {
+    // Identical objects are equal. `0 === -0`, but they aren't identical.
+    // See the Harmony `egal` proposal: http://wiki.ecmascript.org/doku.php?id=harmony:egal.
+    if (a === b) return a !== 0 || 1 / a == 1 / b;
+    // A strict comparison is necessary because `null == undefined`.
+    if (a == null || b == null) return a === b;
+    // Unwrap any wrapped objects.
+    if (a instanceof _) a = a._wrapped;
+    if (b instanceof _) b = b._wrapped;
+    // Compare `[[Class]]` names.
+    var className = toString.call(a);
+    if (className != toString.call(b)) return false;
+    switch (className) {
+      // Strings, numbers, dates, and booleans are compared by value.
+      case '[object String]':
+        // Primitives and their corresponding object wrappers are equivalent; thus, `"5"` is
+        // equivalent to `new String("5")`.
+        return a == String(b);
+      case '[object Number]':
+        // `NaN`s are equivalent, but non-reflexive. An `egal` comparison is performed for
+        // other numeric values.
+        return a != +a ? b != +b : (a == 0 ? 1 / a == 1 / b : a == +b);
+      case '[object Date]':
+      case '[object Boolean]':
+        // Coerce dates and booleans to numeric primitive values. Dates are compared by their
+        // millisecond representations. Note that invalid dates with millisecond representations
+        // of `NaN` are not equivalent.
+        return +a == +b;
+      // RegExps are compared by their source patterns and flags.
+      case '[object RegExp]':
+        return a.source == b.source &&
+               a.global == b.global &&
+               a.multiline == b.multiline &&
+               a.ignoreCase == b.ignoreCase;
+    }
+    if (typeof a != 'object' || typeof b != 'object') return false;
+    // Assume equality for cyclic structures. The algorithm for detecting cyclic
+    // structures is adapted from ES 5.1 section 15.12.3, abstract operation `JO`.
+    var length = aStack.length;
+    while (length--) {
+      // Linear search. Performance is inversely proportional to the number of
+      // unique nested structures.
+      if (aStack[length] == a) return bStack[length] == b;
+    }
+    // Add the first object to the stack of traversed objects.
+    aStack.push(a);
+    bStack.push(b);
+    var size = 0, result = true;
+    // Recursively compare objects and arrays.
+    if (className == '[object Array]') {
+      // Compare array lengths to determine if a deep comparison is necessary.
+      size = a.length;
+      result = size == b.length;
+      if (result) {
+        // Deep compare the contents, ignoring non-numeric properties.
+        while (size--) {
+          if (!(result = eq(a[size], b[size], aStack, bStack))) break;
+        }
+      }
+    } else {
+      // Objects with different constructors are not equivalent, but `Object`s
+      // from different frames are.
+      var aCtor = a.constructor, bCtor = b.constructor;
+      if (aCtor !== bCtor && !(_.isFunction(aCtor) && (aCtor instanceof aCtor) &&
+                               _.isFunction(bCtor) && (bCtor instanceof bCtor))) {
+        return false;
+      }
+      // Deep compare objects.
+      for (var key in a) {
+        if (_.has(a, key)) {
+          // Count the expected number of properties.
+          size++;
+          // Deep compare each member.
+          if (!(result = _.has(b, key) && eq(a[key], b[key], aStack, bStack))) break;
+        }
+      }
+      // Ensure that both objects contain the same number of properties.
+      if (result) {
+        for (key in b) {
+          if (_.has(b, key) && !(size--)) break;
+        }
+        result = !size;
+      }
+    }
+    // Remove the first object from the stack of traversed objects.
+    aStack.pop();
+    bStack.pop();
+    return result;
+  };
+
+  // Perform a deep comparison to check if two objects are equal.
+  _.isEqual = function(a, b) {
+    return eq(a, b, [], []);
+  };
+
+  // Is a given array, string, or object empty?
+  // An "empty" object has no enumerable own-properties.
+  _.isEmpty = function(obj) {
+    if (obj == null) return true;
+    if (_.isArray(obj) || _.isString(obj)) return obj.length === 0;
+    for (var key in obj) if (_.has(obj, key)) return false;
+    return true;
+  };
+
+  // Is a given value a DOM element?
+  _.isElement = function(obj) {
+    return !!(obj && obj.nodeType === 1);
+  };
+
+  // Is a given value an array?
+  // Delegates to ECMA5's native Array.isArray
+  _.isArray = nativeIsArray || function(obj) {
+    return toString.call(obj) == '[object Array]';
+  };
+
+  // Is a given variable an object?
+  _.isObject = function(obj) {
+    return obj === Object(obj);
+  };
+
+  // Add some isType methods: isArguments, isFunction, isString, isNumber, isDate, isRegExp.
+  each(['Arguments', 'Function', 'String', 'Number', 'Date', 'RegExp'], function(name) {
+    _['is' + name] = function(obj) {
+      return toString.call(obj) == '[object ' + name + ']';
+    };
+  });
+
+  // Define a fallback version of the method in browsers (ahem, IE), where
+  // there isn't any inspectable "Arguments" type.
+  if (!_.isArguments(arguments)) {
+    _.isArguments = function(obj) {
+      return !!(obj && _.has(obj, 'callee'));
+    };
+  }
+
+  // Optimize `isFunction` if appropriate.
+  if (typeof (/./) !== 'function') {
+    _.isFunction = function(obj) {
+      return typeof obj === 'function';
+    };
+  }
+
+  // Is a given object a finite number?
+  _.isFinite = function(obj) {
+    return isFinite(obj) && !isNaN(parseFloat(obj));
+  };
+
+  // Is the given value `NaN`? (NaN is the only number which does not equal itself).
+  _.isNaN = function(obj) {
+    return _.isNumber(obj) && obj != +obj;
+  };
+
+  // Is a given value a boolean?
+  _.isBoolean = function(obj) {
+    return obj === true || obj === false || toString.call(obj) == '[object Boolean]';
+  };
+
+  // Is a given value equal to null?
+  _.isNull = function(obj) {
+    return obj === null;
+  };
+
+  // Is a given variable undefined?
+  _.isUndefined = function(obj) {
+    return obj === void 0;
+  };
+
+  // Shortcut function for checking if an object has a given property directly
+  // on itself (in other words, not on a prototype).
+  _.has = function(obj, key) {
+    return hasOwnProperty.call(obj, key);
+  };
+
+  // Utility Functions
+  // -----------------
+
+  // Run Underscore.js in *noConflict* mode, returning the `_` variable to its
+  // previous owner. Returns a reference to the Underscore object.
+  _.noConflict = function() {
+    root._ = previousUnderscore;
+    return this;
+  };
+
+  // Keep the identity function around for default iterators.
+  _.identity = function(value) {
+    return value;
+  };
+
+  // Run a function **n** times.
+  _.times = function(n, iterator, context) {
+    var accum = Array(n);
+    for (var i = 0; i < n; i++) accum[i] = iterator.call(context, i);
+    return accum;
+  };
+
+  // Return a random integer between min and max (inclusive).
+  _.random = function(min, max) {
+    if (max == null) {
+      max = min;
+      min = 0;
+    }
+    return min + (0 | Math.random() * (max - min + 1));
+  };
+
+  // List of HTML entities for escaping.
+  var entityMap = {
+    escape: {
+      '&': '&amp;',
+      '<': '&lt;',
+      '>': '&gt;',
+      '"': '&quot;',
+      "'": '&#x27;',
+      '/': '&#x2F;'
+    }
+  };
+  entityMap.unescape = _.invert(entityMap.escape);
+
+  // Regexes containing the keys and values listed immediately above.
+  var entityRegexes = {
+    escape:   new RegExp('[' + _.keys(entityMap.escape).join('') + ']', 'g'),
+    unescape: new RegExp('(' + _.keys(entityMap.unescape).join('|') + ')', 'g')
+  };
+
+  // Functions for escaping and unescaping strings to/from HTML interpolation.
+  _.each(['escape', 'unescape'], function(method) {
+    _[method] = function(string) {
+      if (string == null) return '';
+      return ('' + string).replace(entityRegexes[method], function(match) {
+        return entityMap[method][match];
+      });
+    };
+  });
+
+  // If the value of the named property is a function then invoke it;
+  // otherwise, return it.
+  _.result = function(object, property) {
+    if (object == null) return null;
+    var value = object[property];
+    return _.isFunction(value) ? value.call(object) : value;
+  };
+
+  // Add your own custom functions to the Underscore object.
+  _.mixin = function(obj) {
+    each(_.functions(obj), function(name){
+      var func = _[name] = obj[name];
+      _.prototype[name] = function() {
+        var args = [this._wrapped];
+        push.apply(args, arguments);
+        return result.call(this, func.apply(_, args));
+      };
+    });
+  };
+
+  // Generate a unique integer id (unique within the entire client session).
+  // Useful for temporary DOM ids.
+  var idCounter = 0;
+  _.uniqueId = function(prefix) {
+    var id = '' + ++idCounter;
+    return prefix ? prefix + id : id;
+  };
+
+  // By default, Underscore uses ERB-style template delimiters, change the
+  // following template settings to use alternative delimiters.
+  _.templateSettings = {
+    evaluate    : /<%([\s\S]+?)%>/g,
+    interpolate : /<%=([\s\S]+?)%>/g,
+    escape      : /<%-([\s\S]+?)%>/g
+  };
+
+  // When customizing `templateSettings`, if you don't want to define an
+  // interpolation, evaluation or escaping regex, we need one that is
+  // guaranteed not to match.
+  var noMatch = /(.)^/;
+
+  // Certain characters need to be escaped so that they can be put into a
+  // string literal.
+  var escapes = {
+    "'":      "'",
+    '\\':     '\\',
+    '\r':     'r',
+    '\n':     'n',
+    '\t':     't',
+    '\u2028': 'u2028',
+    '\u2029': 'u2029'
+  };
+
+  var escaper = /\\|'|\r|\n|\t|\u2028|\u2029/g;
+
+  // JavaScript micro-templating, similar to John Resig's implementation.
+  // Underscore templating handles arbitrary delimiters, preserves whitespace,
+  // and correctly escapes quotes within interpolated code.
+  _.template = function(text, data, settings) {
+    settings = _.defaults({}, settings, _.templateSettings);
+
+    // Combine delimiters into one regular expression via alternation.
+    var matcher = new RegExp([
+      (settings.escape || noMatch).source,
+      (settings.interpolate || noMatch).source,
+      (settings.evaluate || noMatch).source
+    ].join('|') + '|$', 'g');
+
+    // Compile the template source, escaping string literals appropriately.
+    var index = 0;
+    var source = "__p+='";
+    text.replace(matcher, function(match, escape, interpolate, evaluate, offset) {
+      source += text.slice(index, offset)
+        .replace(escaper, function(match) { return '\\' + escapes[match]; });
+
+      if (escape) {
+        source += "'+\n((__t=(" + escape + "))==null?'':_.escape(__t))+\n'";
+      }
+      if (interpolate) {
+        source += "'+\n((__t=(" + interpolate + "))==null?'':__t)+\n'";
+      }
+      if (evaluate) {
+        source += "';\n" + evaluate + "\n__p+='";
+      }
+      index = offset + match.length;
+      return match;
+    });
+    source += "';\n";
+
+    // If a variable is not specified, place data values in local scope.
+    if (!settings.variable) source = 'with(obj||{}){\n' + source + '}\n';
+
+    source = "var __t,__p='',__j=Array.prototype.join," +
+      "print=function(){__p+=__j.call(arguments,'');};\n" +
+      source + "return __p;\n";
+
+    try {
+      var render = new Function(settings.variable || 'obj', '_', source);
+    } catch (e) {
+      e.source = source;
+      throw e;
+    }
+
+    if (data) return render(data, _);
+    var template = function(data) {
+      return render.call(this, data, _);
+    };
+
+    // Provide the compiled function source as a convenience for precompilation.
+    template.source = 'function(' + (settings.variable || 'obj') + '){\n' + source + '}';
+
+    return template;
+  };
+
+  // Add a "chain" function, which will delegate to the wrapper.
+  _.chain = function(obj) {
+    return _(obj).chain();
+  };
+
+  // OOP
+  // ---------------
+  // If Underscore is called as a function, it returns a wrapped object that
+  // can be used OO-style. This wrapper holds altered versions of all the
+  // underscore functions. Wrapped objects may be chained.
+
+  // Helper function to continue chaining intermediate results.
+  var result = function(obj) {
+    return this._chain ? _(obj).chain() : obj;
+  };
+
+  // Add all of the Underscore functions to the wrapper object.
+  _.mixin(_);
+
+  // Add all mutator Array functions to the wrapper.
+  each(['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'], function(name) {
+    var method = ArrayProto[name];
+    _.prototype[name] = function() {
+      var obj = this._wrapped;
+      method.apply(obj, arguments);
+      if ((name == 'shift' || name == 'splice') && obj.length === 0) delete obj[0];
+      return result.call(this, obj);
+    };
+  });
+
+  // Add all accessor Array functions to the wrapper.
+  each(['concat', 'join', 'slice'], function(name) {
+    var method = ArrayProto[name];
+    _.prototype[name] = function() {
+      return result.call(this, method.apply(this._wrapped, arguments));
+    };
+  });
+
+  _.extend(_.prototype, {
+
+    // Start chaining a wrapped Underscore object.
+    chain: function() {
+      this._chain = true;
+      return this;
+    },
+
+    // Extracts the result from a wrapped and chained object.
+    value: function() {
+      return this._wrapped;
+    }
+
+  });
+
+}).call(this);
\ No newline at end of file
diff --git a/addons/im_livechat/static/ext/test.html b/addons/im_livechat/static/ext/test.html
new file mode 100644
index 00000000000..c6047ded77d
--- /dev/null
+++ b/addons/im_livechat/static/ext/test.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <script type="text/javascript" src="http://localhost/im_livechat/static/ext/static/js/require.js"></script>
+    <script type="text/javascript" src='http://localhost/im_livechat/loader?p={"db":"test","channel":1}'></script>
+</head>
+<body style="height:100%; margin:0; padding:0;">
+    <iframe src="http://openerp.com" height="100%" width=100%"></iframe>
+</body>
+</html>
\ No newline at end of file
diff --git a/addons/im_livechat/static/src/img/default.png b/addons/im_livechat/static/src/img/default.png
new file mode 100644
index 00000000000..07d2503ce4e
--- /dev/null
+++ b/addons/im_livechat/static/src/img/default.png
diff --git a/addons/im_livechat/static/src/img/icon.png b/addons/im_livechat/static/src/img/icon.png
new file mode 100644
index 00000000000..07d2503ce4e
--- /dev/null
+++ b/addons/im_livechat/static/src/img/icon.png
diff --git a/addons/im_livechat/web_page.html b/addons/im_livechat/web_page.html
new file mode 100644
index 00000000000..2e1ea609126
--- /dev/null
+++ b/addons/im_livechat/web_page.html
@@ -0,0 +1,61 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <script type="text/javascript">
+        window.oe_im_livechat_auto = true;
+    </script>
+    {{script}}
+    <style type="text/css">
+        body {
+            height: 100%;
+            font-size: 16px;
+            font-weight: 400;
+            font-family: "Lato", "Lucida Grande", "Helvetica neue", "Helvetica", "Verdana", "Arial", sans-serif;
+            overflow: hidden;
+            overflow-y: auto;
+            display: block;
+            margin: 0;
+            padding: 0;
+            border: none;
+            width: 100%;
+            height: 100%;
+            background: #C9C8E0;
+            background-image: -webkit-linear-gradient(top, #7c7bad, #ddddee);
+            background-image: -moz-linear-gradient(top, #7c7bad, #ddddee);
+            background-image: -ms-linear-gradient(top, #7c7bad, #ddddee);
+            background-image: -o-linear-gradient(top, #7c7bad, #ddddee);
+            background-image: linear-gradient(to bottom, #7c7bad, #ddddee);
+            filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#7c7bad', endColorstr='#ddddee',GradientType=0 );
+            -webkit-background-size: cover;
+            -moz-background-size: cover;
+            -o-background-size: cover;
+            background-size: cover;
+            background-repeat: no-repeat;
+            background-attachment: fixed;
+        }
+        .main {
+            position: absolute;
+            opacity: 0;
+            top: 50%;
+            width: 100%;
+            margin-top: -150px;
+            color: white;
+            text-shadow: 0 1px 0 rgba(34, 52, 72, 0.2);
+            z-index: 10;
+            text-align: center;
+        }
+        .main h1 {
+            font-size: 54px;
+        }
+        .main div {
+            font-style: italic;
+        }
+    </style>
+</head>
+<body>
+    <div class="main" style="opacity: 1;">
+        <h1 class="channel_name">{{channelName | escape}}</h1>
+        <div>Live Chat Powered by <strong>OpenERP</strong>.</div>
+    </div>
+</body>
+</html>