//*************************************************************************************
//
//    Search Engine Friendly Drop-down menu
//
//*************************************************************************************

	
	var disappeardelay = 350  	//menu disappear speed onMouseout (in miliseconds)
	var enableanchorlink = 1 	//Enable or disable the anchor link when clicked on? (1=e, 0=d)
	var hidemenu_onclick = 1 	//hide menu when user clicks within menu? (1=yes, 0=no)


	var ie5=document.all
	var ns6=document.getElementById&&!document.all

	function getposOffset(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;
	}

	function showhide(obj, e, visible, hidden)
	{
		if (ie5||ns6)
			dropmenuobj.style.left=dropmenuobj.style.top=-500
		if (e.type=="click" && obj.visibility==hidden || e.type=="mouseover")
			obj.visibility=visible
		else if (e.type=="click")
			obj.visibility=hidden
	}

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

	function clearbrowseredge(obj, whichedge)
	{
		var edgeoffset=0
		if (whichedge=="rightedge")
		{
			var windowedge=ie5 && !window.opera? iecompattest().scrollLeft+iecompattest().clientWidth-15 : window.pageXOffset+window.innerWidth-15
			dropmenuobj.contentmeasure=dropmenuobj.offsetWidth
			if (windowedge-dropmenuobj.x < dropmenuobj.contentmeasure)
				edgeoffset=dropmenuobj.contentmeasure-obj.offsetWidth
		}
		else
		{
			var topedge=ie5 && !window.opera? iecompattest().scrollTop : window.pageYOffset
			var windowedge=ie5 && !window.opera? iecompattest().scrollTop+iecompattest().clientHeight-15 : window.pageYOffset+window.innerHeight-18
			dropmenuobj.contentmeasure=dropmenuobj.offsetHeight
			if (windowedge-dropmenuobj.y < dropmenuobj.contentmeasure)
			{ //move up?
				edgeoffset=dropmenuobj.contentmeasure+obj.offsetHeight
				if ((dropmenuobj.y-topedge)<dropmenuobj.contentmeasure) //up no good either?
				edgeoffset=dropmenuobj.y+obj.offsetHeight-topedge
			}
		}
		return edgeoffset
	}

	function dropdownmenu(obj, e, dropmenuID)
	{
		if (window.event) event.cancelBubble=true
		else if (e.stopPropagation) e.stopPropagation()
		if (typeof dropmenuobj!="undefined") //hide previous menu
		dropmenuobj.style.visibility="hidden"
		clearhidemenu()
		if (ie5||ns6)
		{
			obj.onmouseout=delayhidemenu
			dropmenuobj=document.getElementById(dropmenuID)
			if (hidemenu_onclick) dropmenuobj.onclick=function(){dropmenuobj.style.visibility='hidden'}
			dropmenuobj.onmouseover=clearhidemenu
			dropmenuobj.onmouseout=ie5? function(){ dynamichide(event)} : function(event){ dynamichide(event)}
			showhide(dropmenuobj.style, e, "visible", "hidden")
			dropmenuobj.x=getposOffset(obj, "left") - 28
			dropmenuobj.y=getposOffset(obj, "top") + 5
			dropmenuobj.style.left=dropmenuobj.x-clearbrowseredge(obj, "rightedge")+"px"
			dropmenuobj.style.top=dropmenuobj.y-clearbrowseredge(obj, "bottomedge")+obj.offsetHeight+"px"
		}
		return clickreturnvalue()
	}

	function clickreturnvalue()
	{
		if ((ie5||ns6) && !enableanchorlink) return false
		else return true
	}

	function contains_ns6(a, b) 
	{
		while (b.parentNode)
			if ((b = b.parentNode) == a)
				return true;
			return false;
	}

	function dynamichide(e)
	{
		if (ie5&&!dropmenuobj.contains(e.toElement))
			delayhidemenu()
		else if (ns6&&e.currentTarget!= e.relatedTarget&& !contains_ns6(e.currentTarget, e.relatedTarget))
			delayhidemenu()
	}

	function delayhidemenu()
	{
		delayhide=setTimeout("dropmenuobj.style.visibility='hidden'",disappeardelay)
	}

	function clearhidemenu()
	{
		if (typeof delayhide!="undefined")
			clearTimeout(delayhide)
	}