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_alt(obj, e, visible, hidden, menuwidth)
{
	if (ie4 || ns6)
	{
		dropmenuobj.style.left=dropmenuobj.style.top=-500;
	}
	if (menuwidth!="")
	{
		dropmenuobj.widthobj=dropmenuobj.style;
		dropmenuobj.widthobj.width=menuwidth;
	}
	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=ie4 && !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=ie4 && !window.opera? iecompattest().scrollTop : window.pageYOffset;
		var windowedge=ie4 && !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 populatemenu(what)
{
	if (ie4||ns6)
	{
		dropmenuobj.innerHTML=what.join("");
	}
}


function dropdownmenu(obj, e, menucontents, menuwidth)
{
	if (window.event)
	{
		event.cancelBubble=true;
	}
	else if (e.stopPropagation)
	{
		e.stopPropagation();
	}
	clearhidemenu();
	dropmenuobj = document.getElementById ? document.getElementById("dropmenudiv") : dropmenudiv;
	populatemenu(menucontents);

	if (ie4||ns6)
	{
		showhide_alt(dropmenuobj.style, e, "visible", "hidden", menuwidth);
		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 clickreturnvalue()
{
	if (ie4 || ns6)
	{
		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 (ie4 && !dropmenuobj.contains(e.toElement))
	{
		delayhidemenu();
	}
	else if (ns6 && e.currentTarget != e.relatedTarget && !contains_ns6(e.currentTarget, e.relatedTarget))
	{
		delayhidemenu();
	}
}

function hidemenu(e)
{
	if (typeof dropmenuobj!="undefined")
	{
		if (ie4||ns6)
		{
			dropmenuobj.style.visibility="hidden";
		}
	}
}

function delayhidemenu()
{
	if (ie4||ns6)
	{
		delayhide=setTimeout("hidemenu()",disappeardelay);
	}
}

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