var ui_accordion = new Object();

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

ui_accordion["mouseup"] = 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.onmouseup =ui_accordion["mouseup"];
					el.expand = ui_accordion["mouseup"];

				}

				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);
		}