//Date: 10/30/2006
//Andy Patel

var disappeardelay=250  //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 popoutOffset(what, offsettype)
{
	var totaloffset=(offsettype=="left")? 2 * what.offsetLeft : 0 ;//what.offsetTop;
	var parentEl=what.offsetParent;
	while (parentEl!=null)
	{
		totaloffset=(offsettype=="left")? totaloffset+parentE1.offsetLeft : totaloffset+parentE1.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 POshowhide(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)
		{
			edgeoffset=dropmenuobj.contentmeasure+obj.offsetHeight;
			if ((dropmenuobj.y-topedge)<dropmenuobj.contentmeasure)
				edgeoffset=dropmenuobj.y+obj.offsetHeight-topedge;
		}
	}
	return edgeoffset;
}

function POclearbrowseredge(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)
		{
			edgeoffset=dropmenuobj.contentmeasure;
			if ((dropmenuobj.y-topedge)<dropmenuobj.contentmeasure)
				edgeoffset=dropmenuobj.y-topedge;
		}
	}
	return edgeoffset;
}

function dropdownmenu(obj, e, dropmenuID){
	if (window.event) 
		event.cancelBubble=true;
	else if (e.stopPropagation) 
		e.stopPropagation();
	if (typeof dropmenuobj!="undefined")
		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");
		dropmenuobj.y=getposOffset(obj, "top");
		dropmenuobj.style.left=dropmenuobj.x-clearbrowseredge(obj, "rightedge")+"px";
		dropmenuobj.style.top=dropmenuobj.y-clearbrowseredge(obj, "bottomedge")+obj.offsetHeight+"px";
	}
	return clickreturnvalue();
}

function popoutmenu(obj, e, dropmenuID)
{
	if (window.event) 
		event.cancelBubble=true;
	else if (e.stopPropagation) 
		e.stopPropagation();
	if (  (typeof dropmenuobj!="undefined") && ( ((dropmenuobj.ID).indexOf(dropmenuID.substr(0,5)) == -1 ) || ( dropmenuobj.ID.length >= dropmenuID.length )  )  )
		dropmenuobj.style.visibility="hidden";
	POclearhidemenu();
	if (ie5||ns6)
	{
		obj.onmouseout=delayhidemenu;
		dropmenuobj=document.getElementById(dropmenuID);
		dropmenuobj.ID=dropmenuID;
		if (hidemenu_onclick) 
			dropmenuobj.onclick=function(){dropmenuobj.style.visibility='hidden'}
		dropmenuobj.onmouseover=POclearhidemenu;
		dropmenuobj.onmouseout=ie5? function(){ POdynamichide(event)} : function(event){ POdynamichide(event)}
		POshowhide(dropmenuobj.style, e, "visible", "hidden");
		
		dropmenuobj.x= 0;//popoutOffset(obj, "left");
		dropmenuobj.y= 0;//popoutOffset(obj, "top");
		dropmenuobj.style.left=obj.offsetLeft+obj.offsetWidth+"px";//dropmenuobj.x-POclearbrowseredge(obj, "rightedge")+obj.offsetWidth+"px";
		dropmenuobj.style.top=obj.offsetTop+"px";//dropmenuobj.y-POclearbrowseredge(obj, "bottomedge")+"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 POdynamichide(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);
}

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