var menuwidth='165px'
var disappeardelay=300
var hidemenu_onclick="no"

var ie4=document.all
var ns6=document.getElementById&&!document.all


function getposOffset(menu, what, offsettype){

	obj = document.getElementsByTagName("div");

	linkskorrektur = 0;
	//alert(menu);
	if (menu == 'ds1') {
		linkskorrektur = 42;
	}
	if (menu == 'ds2') {
		linkskorrektur = 19;
	}
	if (menu == 'ds3') {
		linkskorrektur = 39;
	}

	var totaloffset=(offsettype=="left")? what.offsetLeft - linkskorrektur: 0 + 6;
	var parentEl=what.offsetParent;

	while (parentEl!=null){
		totaloffset=(offsettype=="left")? totaloffset+parentEl.offsetLeft : totaloffset+parentEl.offsetTop - 2;
		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=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, menu, menuwidth){

	if (window.event)
		event.cancelBubble=true
	else if (e.stopPropagation)
		e.stopPropagation()

	clearhidemenu()

	dropmenuobj=document.getElementById? document.getElementById(menu) : dropmenudiv

	if (ie4||ns6){

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

		dropmenuobj.x=getposOffset(menu, obj, "left")
		dropmenuobj.y=getposOffset(menu, obj, "top")
		dropmenuobj.style.left=dropmenuobj.x-clearbrowseredge(obj, "rightedge")+"px"
		dropmenuobj.style.top=dropmenuobj.y-clearbrowseredge(obj, "bottomedge")+obj.offsetHeight+"px"

	}

	anz_menupunkte = 3;
	for (var i=1; i<=anz_menupunkte; i++) {
		if (menu != 'ds'+i) {
			obj = document.getElementsByTagName("div");
			obj['ds'+i].style.visibility = "hidden"
		}
	}

	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)
}

if (hidemenu_onclick=="yes")
	document.onclick=hidemenu