//Chrome Drop Down Menu v2.01- Author: Dynamic Drive (http://www.dynamicdrive.com/dynamicindex1/chrome/index.htm)
//Last updated: November 14th 06- added iframe shim technique

var cssdropdown={
disappeardelay: 250, //set delay in milliseconds before menu disappears onmouseout
disablemenuclick: false, //when user clicks on a menu item with a drop down menu, disable menu item's link?
enableswipe: 1, //enable swipe effect? 1 for yes, 0 for no
enableiframeshim: 0, //enable "iframe shim" technique to get drop down menus to correctly appear on top of controls such as form objects in IE5.5/IE6? 1 for yes, 0 for no

////////////////No need to edit beyond here////////////////////////
dropmenuobj: null, ie: document.all, firefox: document.getElementById&&!document.all, swipetimer: undefined, bottomclip:0,

getposOffset:function(what, offsettype)
{
	var totaloffset=(offsettype=="left")? what.offsetLeft : what.offsetTop;
	var parentEl=what.offsetParent;
	while (parentEl!=null)
	{
		totaloffset=(offsettype=="left")? totaloffset+parentEl.offsetLeft : totaloffset+parentEl.offsetTop;
		parentEl=parentEl.offsetParent;
	}
	return totaloffset;
},

swipeeffect:function()
{
	//if (this.bottomclip<parseInt(this.dropmenuobj.offsetHeight))																		// Ghislain (before)
	if ( (this.dropmenuobj != null) && (this.bottomclip < parseInt(this.dropmenuobj.offsetHeight)) )	// Ghislain (after)
	{
		this.bottomclip+=10+(this.bottomclip/10); //unclip drop down menu visibility gradually
		this.dropmenuobj.style.clip="rect(0 auto "+this.bottomclip+"px 0)";
	}
	else
	{
		return;
	}
	this.swipetimer=setTimeout("cssdropdown.swipeeffect()", 10);
},

showhide:function(obj, e)
{
	if (this.ie || this.firefox)
	{
		this.dropmenuobj.style.left=this.dropmenuobj.style.top="-500px";
	}

	if (e.type=="click" && obj.visibility==hidden || e.type=="mouseover")
	{
		if (this.enableswipe==1)
		{
			if (typeof this.swipetimer!="undefined")
			{
				clearTimeout(this.swipetimer);
			}
			obj.clip="rect(0 auto 0 0)"; //hide menu via clipping
			this.bottomclip=0;
			this.swipeeffect();
		}
		obj.visibility="visible";
	}
	else if (e.type=="click")
	{
		obj.visibility="hidden";
	}
},

iecompattest:function()
{
	return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body;
},

clearbrowseredge:function(obj, whichedge)
{
	var edgeoffset=0;
	if (whichedge=="rightedge")
	{
		var windowedge=this.ie && !window.opera? this.iecompattest().scrollLeft+this.iecompattest().clientWidth-15 : window.pageXOffset+window.innerWidth-15;
		this.dropmenuobj.contentmeasure=this.dropmenuobj.offsetWidth;
		if (windowedge-this.dropmenuobj.x < this.dropmenuobj.contentmeasure)  //move menu to the left?
		{
			edgeoffset=this.dropmenuobj.contentmeasure-obj.offsetWidth;
		}
	}
	else
	{
		var topedge=this.ie && !window.opera? this.iecompattest().scrollTop : window.pageYOffset;
		var windowedge=this.ie && !window.opera? this.iecompattest().scrollTop+this.iecompattest().clientHeight-15 : window.pageYOffset+window.innerHeight-18;
		this.dropmenuobj.contentmeasure=this.dropmenuobj.offsetHeight;

		if (windowedge-this.dropmenuobj.y < this.dropmenuobj.contentmeasure)
		{ //move up?
			edgeoffset=this.dropmenuobj.contentmeasure+obj.offsetHeight;
			if ((this.dropmenuobj.y-topedge)<this.dropmenuobj.contentmeasure) //up no good either?
			{
				edgeoffset=this.dropmenuobj.y+obj.offsetHeight-topedge;
			}
		}
	}
	return edgeoffset;
},

dropit:function(obj, e, dropmenuID)
{
	if (this.dropmenuobj!=null) //hide previous menu
	{
		this.dropmenuobj.style.visibility="hidden"; //hide menu
	}

	this.clearhidemenu();
	if (this.ie||this.firefox)
	{
		obj.onmouseout=function(){cssdropdown.delayhidemenu()};
		obj.onclick=function(){return !cssdropdown.disablemenuclick}; //disable main menu item link onclick?
		this.dropmenuobj=document.getElementById(dropmenuID);

		if ( this.dropmenuobj != null )		// Ghislain
		{
			this.dropmenuobj.onmouseover=function(){cssdropdown.clearhidemenu()};
			this.dropmenuobj.onmouseout=function(e){cssdropdown.dynamichide(e)};
			this.dropmenuobj.onclick=function(){cssdropdown.delayhidemenu()};
			this.showhide(this.dropmenuobj.style, e);
			this.dropmenuobj.x=this.getposOffset(obj, "left");
			this.dropmenuobj.y=this.getposOffset(obj, "top");
			this.dropmenuobj.style.left=this.dropmenuobj.x-this.clearbrowseredge(obj, "rightedge")-10+"px";
			this.dropmenuobj.style.top=this.dropmenuobj.y-this.clearbrowseredge(obj, "bottomedge")+obj.offsetHeight+10+"px";
			this.positionshim(); //call iframe shim function
		}
	}
},

positionshim:function()
{ //display iframe shim function
	if (this.enableiframeshim && typeof this.shimobject!="undefined")
	{
		if (this.dropmenuobj.style.visibility=="visible")
		{
			this.shimobject.style.width=this.dropmenuobj.offsetWidth+"px";
			this.shimobject.style.height=this.dropmenuobj.offsetHeight+"px";
			this.shimobject.style.left=this.dropmenuobj.style.left;
			this.shimobject.style.top=this.dropmenuobj.style.top;
		}
		this.shimobject.style.display=(this.dropmenuobj.style.visibility=="visible")? "block" : "none";
	}
},

hideshim:function()
{
	if (this.enableiframeshim && typeof this.shimobject!="undefined")
	{
		this.shimobject.style.display='none';
	}
},

contains_firefox:function(a, b)
{
	while (b.parentNode)
	{
		if ((b = b.parentNode) == a)
		{
			return true;
		}
		return false;
	}
},

dynamichide:function(e)
{
	var evtobj=window.event? window.event : e;
	if (this.ie&&!this.dropmenuobj.contains(evtobj.toElement))
	{
		this.delayhidemenu();
	}
	else if (this.firefox&&e.currentTarget!= evtobj.relatedTarget&& !this.contains_firefox(evtobj.currentTarget, evtobj.relatedTarget))
	{
		this.delayhidemenu();
	}
},

delayhidemenu:function()
{
	this.delayhide=setTimeout("cssdropdown.dropmenuobj.style.visibility='hidden'; cssdropdown.hideshim()",this.disappeardelay); //hide menu
},

clearhidemenu:function()
{
	if (this.delayhide!="undefined")
	{
		clearTimeout(this.delayhide);
	}
},

startchrome:function()
{
	for (var ids=0; ids<arguments.length; ids++)
	{
		var menuitems=document.getElementById(arguments[ids]).getElementsByTagName("a");
		for (var i=0; i<menuitems.length; i++)
		{
			if (menuitems[i].getAttribute("rel"))
			{
				var relvalue=menuitems[i].getAttribute("rel");
				menuitems[i].onmouseover=function(e)
				{
					var event=typeof e!="undefined"? e : window.event;
					cssdropdown.dropit(this,event,this.getAttribute("rel"));
				}
			}
		}
	}

	if (window.createPopup && !window.XmlHttpRequest){ //if IE5.5 to IE6, create iframe for iframe shim technique
	{
		document.write('<IFRAME id="iframeshim"  src="" style="display: none; left: 0; top: 0; z-index: 90; position: absolute; filter: progid:DXImageTransform.Microsoft.Alpha(style=0,opacity=0)" frameBorder="0" scrolling="no"></IFRAME>');
	}
	this.shimobject=document.getElementById("iframeshim"); //reference iframe object
}
}

}