var ui_accordion = new Object();

ui_accordion["mouseout"] = function ()
{
	removeClass(this,"hover");
	return false;
}

ui_accordion["mousedown"] = function ()
{
	this.timer = setTimeout("void(0)",0);
	var k = 0;			
	var mb = this.mb;
	
	
	var dds = mb.parentNode.getElementsByTagName("dd");
	var dts = mb.parentNode.getElementsByTagName("dt");
	
	if(this.parentNode.getAttribute("standalone")!=null)
	{
		var do_expand = (mb.offsetHeight>1)?false:true;
		var action = function()
		{
			clearTimeout(this.timer);
			if(do_expand)
			{//do expand
				
				if(	mb.offsetHeight < (mb.scrollHeight-5) )
				{
					mb.style.height = Math.ceil( mb.offsetHeight +  (mb.scrollHeight-mb.offsetHeight)/7) + "px";
					this.timer = setTimeout(action,0);
				}
				else
				{
					mb.style.height="auto";
					mb.style.overflow ="visible";
					do_expand = null;
					action = null;
					mb = null;				
				}
			}else{//do collapse;

				if(	 parseInt(mb.style.height) > 3)
				{
					
					mb.style.height = Math.ceil(  parseInt(mb.style.height) +  (- parseInt(mb.style.height))/2) + "px";
					window.status =  mb.style.height + new Date();
					this.timer = setTimeout(action,0);
				}
				else
				{
					mb.style.height="0";
					mb.style.overflow ="hidden";
					mb.style.display = "none";
					do_expand = null;
					action = null;
					mb = null;				
				}
			}
		}

		if(do_expand)
		{//begin expand
			mb.style.height="1px";
			mb.style.overflow ="auto";
			mb.style.display="block";
		}else{//begin collapse;

			mb.style.height= mb.offsetHeight + "px";
			mb.style.overflow ="hidden";
			mb.style.display="block";
			
		
		}
		clearTimeout(this.timer);
		this.timer = setTimeout(action,0);
		return false;
	}
	
	
	var hasExpendedDD = false;
	for(var i=0;i<dds.length;i++)
	{
		dds[i].ddIndex = i;
		var closed,expand,collapse ;
		var collapsed = false;
		
		if( dds[i] == mb)
		{
			
			
			if(dts[mb.ddIndex]){ addClass(dts[mb.ddIndex],"expanding");};
		
			var start = new Date();
			expand = function()
			{	
				clearTimeout(this.timer);
				if(mb.style.display.toLowerCase()!="block")
				{
					mb.style.display="block";
					mb.endHeight =  mb.scrollHeight;
					mb.style.overflow ="hidden";			
				};

				var end = new Date();

				if((mb.offsetHeight < mb.endHeight) && ((end - start)<500))
				{
					mb.style.height = Math.ceil( mb.offsetHeight + (mb.endHeight- mb.offsetHeight)/33 ) + "px";
					this.timer = setTimeout(expand,0);				
				}
				else
				{	
					mb.style.height="auto";
					mb.style.overflow="auto";					
					if(dts[mb.ddIndex]){ removeClass(dts[mb.ddIndex],"expanding");};					
				}
				
			}
			
			
		}else if(dds[i].offsetHeight>0)
		{
		
			hasExpendedDD = true;
			collapsed = true;
			closed = dds[i];
			closed.style.height = closed.offsetHeight+"px";
			closed.style.overflow ="hidden";
			addClass(closed,"collapsing");
		
			if(dts[closed.ddIndex]){ addClass(dts[closed.ddIndex],"collapsing");};
			var start = new Date();
			collapse = function()
			{
				
				clearTimeout(this.timer);
				var ph = parseInt(closed.style.height);
				var end = new Date();
				if((ph > 2) && ((end - start)<200))
				{
					closed.style.height =Math.floor(ph  + (0-ph)/2)  + "px";
					this.timer = setTimeout(collapse,0);
				}else
				{	
					closed.style.height="0";
					closed.style.display="none";
					closed.style.overflow ="visible";
					if(dts[closed.ddIndex])
					{
						removeClass(dts[closed.ddIndex],"collapsing");
						removeClass(closed,"collapsing");
					}

					this.timer = setTimeout(expand,0);
				}
			}
			clearTimeout(this.timer);
			this.timer = setTimeout( collapse,0);
		}
		
	}
	if(collapsed==false){ if(dts[mb.ddIndex]){ removeClass(dts[mb.ddIndex],"expanding");};};
	if(hasExpendedDD == false)
	{
		for(var i=0;i<dds.length;i++)
		{
			closed = dds[i];
			closed.style.height = 0;
			closed.style.overflow ="visible";
			removeClass(closed,"default_close");
			closed.style.display="none";	
			
			
		};
	
		this.timer = setTimeout(expand,0);
	};
	return false;
}



ui_accordion["mouseover"] = function (e,dt,doExpand)
{
 
 var el;
if(dt)
{
	el = dt;
}
else
{
	e =  getEvent(e);
	el =  getObjByClass(e.target,"dt","",2) ;
}

 if(el && el.parentNode && hasClass(el.parentNode,"accordion"))
 {
	var  def = getChildByClass(el.parentNode,"dd","default",1);
	
	if(!def)
	 {
		if(el.parentNode.getElementsByTagName("dd").length>0)
		 {
			var dd = el.parentNode.getElementsByTagName("dd")[0];
			addClass(dd ,"default");
			addClass(dd ,"default_close");			
		 }
		 else{return;}
	 }
	
	if(!doExpand)
	{
		addClass(el,"hover");
	}

	if(el.init==null)
	{
		var mb = getNextObjByTagName(el,"dd");
		if(mb==null){return;}			;
		
		el.mb = mb;		
		el.init = true;
		el.onmouseout =ui_accordion["mouseout"];
		el.onmousedown =ui_accordion["mousedown"];
		el.expand = ui_accordion["mousedown"];
		
	}
	
	if(doExpand)
	{
		el.expand();
	}

	if(e){ return stopEvent(e);}
 }
}



var init = addEvent(document,"mouseover",ui_accordion["mouseover"]);
if(init)
{
 document.write("<style media=\"screen\"> dl.accordion dd{height:0;display:none;}; </style>");
}

function accordion_menu_expand(accordion_header_id)
{
 var el  = document.getElementById(accordion_header_id);
 if(!el){return false;};
 if(el.tagName.toLowerCase()!="dt"){return false;}
 ui_accordion["mouseover"](null,el,true);
}