// Dit kun je aanpassen

var vertraging=10     // vertragingstijd menu vooraleer te verdwijnen (in milliseconden)
var hoofdlink=1         // werking hoofdlink in- of uitschakelen (1=in, 0=uit)
var verbergen=1         // menu verbergen na aanklikken subitem (1=ja, 0=nee)


// Hieronder niets meer wijzigen

var ie5=document.all
var ns6=document.getElementById&&!document.all

function positie_bepalen(voorwerp, offsettype){
var totaloffset=(offsettype=="left")? voorwerp.offsetLeft : voorwerp.offsetTop;
var parentEl=voorwerp.offsetParent;
while (parentEl!=null){
totaloffset=(offsettype=="left")? totaloffset+parentEl.offsetLeft : totaloffset+parentEl.offsetTop;
parentEl=parentEl.offsetParent;}
return totaloffset;}

function tonen_verbergen(obj, e, visible, hidden){
if (ie5||ns6)
menuobject.style.left=menuobject.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 iecompattest(){
return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body}

function rand_bereikt(obj, welke_rand){
var edgeoffset=0
if (welke_rand=="rightedge"){
var vensterrand=ie5 && !window.opera? iecompattest().scrollLeft+iecompattest().clientWidth-15 : window.pageXOffset+window.innerWidth-15
menuobject.contentmeasure=menuobject.offsetWidth
if (vensterrand-menuobject.x < menuobject.contentmeasure)
edgeoffset=menuobject.contentmeasure-obj.offsetWidth}
else{
var vensterrand=ie5 && !window.opera? iecompattest().scrollTop+iecompattest().clientHeight-15 : window.pageYOffset+window.innerHeight-18
menuobject.contentmeasure=menuobject.offsetHeight
if (vensterrand-menuobject.y < menuobject.contentmeasure)
edgeoffset=menuobject.contentmeasure+obj.offsetHeight}
return edgeoffset}

function toonmenu(obj, e, dropmenuID){
if (window.event) event.cancelBubble=true
else if (e.stopPropagation) e.stopPropagation()
if (typeof menuobject!="undefined") 
menuobject.style.visibility="hidden"
clearhidemenu()
if (ie5||ns6){
obj.onmouseout=delayhidemenu
menuobject=document.getElementById(dropmenuID)
if (verbergen) menuobject.onclick=function(){menuobject.style.visibility='hidden'}
menuobject.onmouseover=clearhidemenu
menuobject.onmouseout=ie5? function(){ dynamisch_verbergen(event)} : function(event){ dynamisch_verbergen(event)}
tonen_verbergen(menuobject.style, e, "visible", "hidden")
menuobject.x=positie_bepalen(obj, "left")
menuobject.y=positie_bepalen(obj, "top")
menuobject.style.left=menuobject.x-rand_bereikt(obj, "rightedge")+"px"
menuobject.style.top=menuobject.y-rand_bereikt(obj, "bottomedge")+obj.offsetHeight+"px"}
return klik()}

function klik(){
if ((ie5||ns6) && !hoofdlink) return false
else return true}

function ns6compat(a, b) {
while (b.parentNode)
if ((b = b.parentNode) == a)
return true;
return false;}

function dynamisch_verbergen(e){
if (ie5&&!menuobject.contains(e.toElement))
delayhidemenu()
else if (ns6&&e.currentTarget!= e.relatedTarget&& !ns6compat(e.currentTarget, e.relatedTarget))
delayhidemenu()}

function delayhidemenu(){
delayhide=setTimeout("menuobject.style.visibility='hidden'",vertraging)}

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