var disappeardelay=250 
var horizontaloffset=1 
var verticaloffset=1 

var ie4=document.all
var ns6=document.getElementById&&!document.all
var subcat = 'menu2';
var eindcat = 'menu3';
var id_gewenste_cat = -1;

if (ie4||ns6)
document.write('<div id="dropmenudiv" style="visibility:hidden;width: 450 px;" onMouseover="clearhidemenu()" onMouseout="dynamichide(event)"></div>')

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=-500
	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-obj.offsetWidth < 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){ 
		edgeoffset=dropmenuobj.contentmeasure-obj.offsetHeight
		if ((dropmenuobj.y-topedge)<dropmenuobj.contentmeasure) 
		edgeoffset=dropmenuobj.y
		}
	}
	return edgeoffset
}

function populatemenu(what){
	if (ie4||ns6)
	dropmenuobj.innerHTML=what.join("")
}
function kies_subcat(menu,obj,naam)
{
	subcat = 'menu'+menu;
	id_gewenste_cat = menu;
	eindcat = 'menu4';
	dropmenuobj.style.visibility="hidden"
	document.getElementById("subcategorie").style.backgroundImage = "url(plaatjes/uitklapper.gif)";
	document.getElementById("eindcategorie").style.backgroundImage = "url(plaatjes/uitklapper_licht.gif)";
	document.getElementById("hoofdcategorie").innerHTML = '&nbsp; '+naam;
	document.getElementById("subcategorie").innerHTML = '&nbsp; selecteer';
	document.getElementById("eindcategorie").innerHTML = '&nbsp; ';
	document.getElementById("titel_subcategorie").style.color = "#666666";
	document.getElementById("titel_eindcategorie").style.color = "#CCCCCC";
}
function kies_eindcat(menu,obj,naam)
{
	eindcat = 'menu'+menu;
	id_gewenste_cat = menu;
	dropmenuobj.style.visibility="hidden"
	document.getElementById("eindcategorie").style.backgroundImage = "url(plaatjes/uitklapper.gif)";
	document.getElementById("subcategorie").style.backgroundImage = "url(plaatjes/uitklapper.gif)";
	document.getElementById("subcategorie").innerHTML = '&nbsp; '+naam;
	document.getElementById("eindcategorie").innerHTML = '&nbsp; selecteer';
	document.getElementById("titel_subcategorie").style.color = "#666666";
	document.getElementById("titel_eindcategorie").style.color = "#666666";
}
function selecteer_gewenste_cat(cat,obj,naam)
{
	id_gewenste_cat = cat;
	dropmenuobj.style.visibility="hidden"
	document.getElementById("eindcategorie").style.backgroundImage = "url(plaatjes/uitklapper.gif)";
	document.getElementById("eindcategorie").innerHTML = '&nbsp; '+naam;
	document.getElementById("titel_eindcategorie").style.color = "#666666";
}
function toon_gewenste_cat()
{
	location.href="?id_hoofd=2&id_pagina=14&geef_alles=1&id_cat="+id_gewenste_cat;
}

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
	if(menucontents!=menu1) menucontents = eval(menucontents);
	populatemenu(menucontents)
	
	if (ie4||ns6){
	showhide(dropmenuobj.style, e, "visible", "hidden", menuwidth)
	dropmenuobj.x=getposOffset(obj, "left")
	dropmenuobj.y=getposOffset(obj, "top")
	dropmenuobj.style.left=dropmenuobj.x-clearbrowseredge(obj, "rightedge")+horizontaloffset+"px"
	dropmenuobj.style.top=dropmenuobj.y-clearbrowseredge(obj, "bottomedge")+obj.offsetHeight+verticaloffset+"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)
}
// alleen voor tijdelijke mededeling
function sluit_mededeling()
{
	document.getElementById("mededeling").style.visibility = "hidden";
}