/*
This software is allowed to use under GPL or you need to obtain Commercial or Enterise License
to use it in non-GPL project. Please contact sales@dhtmlx.com for details
*/
scheduler.expand = function(){
    var t = scheduler._obj;
    do {
     t._position = t.style.position||"";
     t.style.position = "static";
    } while ((t = t.parentNode) && t.style );
    t = scheduler._obj;
    t.style.position="absolute";
    t._width = t.style.width;
    t._height = t.style.height;
    t.style.width = t.style.height = "100%";
    t.style.top = t.style.left = "0px";

    var top = document.body;
      top.scrollTop = 0;

    top = top.parentNode;
    if (top)
      top.scrollTop = 0;
    document.body._overflow=document.body.style.overflow||"";
    document.body.style.overflow = "hidden";
    scheduler._maximize();
};
scheduler.collapse = function(){
      var t = scheduler._obj;
      do {
         t.style.position = t._position;
      } while ((t = t.parentNode) && t.style );
	  t = scheduler._obj;
      t.style.width = t._width;
      t.style.height = t._height;
      document.body.style.overflow=document.body._overflow;
	  scheduler._maximize();
};
scheduler.attachEvent("onTemplatesReady",function(){
   var t = document.createElement("DIV");
   t.className="dhx_expand_icon";
   scheduler.toggleIcon = t;
   scheduler._obj.appendChild(t);   
   t.onclick = function(){
      if (!scheduler.expanded)
         scheduler.expand();
      else 
         scheduler.collapse();
   }
});

scheduler._maximize = function(){
    this.expanded = !this.expanded;
    this.toggleIcon.style.backgroundPosition="0px "+(this.expanded?"0":"18")+"px";

    var directions = ['left', 'top'];
    for(var i=0; i<directions.length; i++) {
        var margin = scheduler.xy['margin_'+directions[i]];
        var prev_margin = scheduler['_prev_margin_'+directions[i]];
        if(scheduler.xy['margin_'+directions[i]]){
            scheduler['_prev_margin_'+directions[i]] = scheduler.xy['margin_'+directions[i]];
            scheduler.xy['margin_'+directions[i]] = 0;
        }
        else {
            if(prev_margin){
                scheduler.xy['margin_'+directions[i]] = scheduler['_prev_margin_'+directions[i]];
                delete scheduler['_prev_margin_'+directions[i]];
            }
        }
    }

    if (scheduler.callEvent("onSchedulerResize",[]))
        scheduler.update_view();
};