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, menuwidth){

	if (ie4||ns6)

		dropmenuobj.style.left=dropmenuobj.style.top="-500px"

	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=-1

	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(dropmenuobj.style, e, "visible", "hidden", menuwidth)

		if(ie4)

			dropmenuobj.x=getposOffset(obj, "left") - 2

		else	

			dropmenuobj.x=getposOffset(obj, "left")

		dropmenuobj.y=getposOffset(obj, "top")+1

		dropmenuobj.style.left=dropmenuobj.x-clearbrowseredge(obj, "rightedge")+"px"

		dropmenuobj.style.top=dropmenuobj.y-clearbrowseredge(obj, "bottomedge")+obj.offsetHeight+"px"

		document.getElementById("menuLayer").style.left = dropmenuobj.x-clearbrowseredge(obj, "rightedge")+"px"		

		document.getElementById("menuLayer").style.top = dropmenuobj.y-clearbrowseredge(obj, "bottomedge")+obj.offsetHeight+"px"		

		document.getElementById("menuLayer").style.display = "block"

	}

	

	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"

			document.getElementById("menuLayer").style.display = "none"

	}

}



function delayhidemenu(){

	if (ie4||ns6)

	delayhide=setTimeout("hidemenu()",disappeardelay)

}



function clearhidemenu(){

	if (typeof delayhide!="undefined")

	clearTimeout(delayhide)

}