/* ---------------------------------------------
 * Stratford Rotary Hockey
 * Top navigation menu
 * Chris York
 * ---------------------------------------------
*/

var topDisappeardelay = 250
var topEnableanchorlink = 0
var topHidemenu_onclick = 1
var ie5 = document.all
var ns6 = document.getElementById&&!document.all

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

function topClearbrowseredge(obj, whichedge)
{
	var edgeoffset=0
	if (whichedge=="rightedge")
	{
		var windowedge=ie5 && !window.opera? topIEcompattest().scrollLeft+topIEcompattest().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? topIEcompattest().scrollTop : window.pageYOffset
		var windowedge=ie5 && !window.opera? topIEcompattest().scrollTop+topIEcompattest().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 topDropdownmenu(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"
		topClearhidemenu()
	if (ie5||ns6)
	{
		obj.onmouseout=topDelayhidemenu
		dropmenuobj=document.getElementById(dropmenuID)
		if (topHidemenu_onclick)
			dropmenuobj.onclick=function()
				{
					dropmenuobj.style.visibility='hidden'
				}
		dropmenuobj.onmouseover=topClearhidemenu
		dropmenuobj.onmouseout=ie5? function()
		{
			topDynamichide(event)
		} : function(event)
			{
				topDynamichide(event)
			}
		topShowhide(dropmenuobj.style, e, "visible", "hidden")
		dropmenuobj.x=topGetposOffset(obj, "left")
		dropmenuobj.y=topGetposOffset(obj, "top")
		dropmenuobj.style.left=dropmenuobj.x-topClearbrowseredge(obj, "rightedge")+"px"
		dropmenuobj.style.top=dropmenuobj.y-topClearbrowseredge(obj, "bottomedge")+obj.offsetHeight+"px"
	}
	return topClickreturnvalue()
}

function topClickreturnvalue()
{
	if ((ie5||ns6) && !topEnableanchorlink )
		return false
	else
		return true
}

function topContains_ns6(a, b)
{
	while (b.parentNode)
		if ((b = b.parentNode) == a)
		return true;
	return false;
}

function topDynamichide(e)
{
	if (ie5&&!dropmenuobj.contains(e.toElement))
		topDelayhidemenu()
	else if (ns6&&e.currentTarget!= e.relatedTarget&& !topContains_ns6(e.currentTarget, e.relatedTarget))
	topDelayhidemenu()
}

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

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