function Showlayer(which,how) {
	if (isNav || isExp) {
		eval ('document.'+pre+which+suf+'.visibility="'+how+'"');
		return;
	}
	else if (isW3C || isOpera) {
		obj=document.getElementById(which);
		obj.style.visibility=how;
	}
}

var telang = "nogniet"
latenzienofniet = "nognietbekend";
            
function menuclose() {
telang = "ja";
latenzienofniet = "verberg";
zekerweten=setTimeout("controle() ;",1000) ;
}

function menukeep() {
telang = "nee";
if (latenzienofniet == "verberg") {
clearTimeout(zekerweten) ;
latenzienofniet = "toon";
}
}

function controle() {
if (telang == "nee") {
menuclose()
}
else {
duurttelang()
}
}

function duurttelang() {
Showlayer('kantoorsub','hidden');
Showlayer('specsub','hidden');
Showlayer('werksub','hidden');
telang = "nee";
}


function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}


function route() {
newWindow = window.open("route.htm","route","top=10,left=80,width=568,height=491,directories=no,location=no,menubar=no,resizable=yes,fullscreen=no,status=no,toolbar=no,scrollbars=1");
}

function beheer(URL) {
newWindow = window.open(URL,"beheer","top=0,left=0,width=660,height=500,directories=no,location=no,menubar=no,resizable=yes,fullscreen=no,status=no,toolbar=no,scrollbars=1");
}


function nwsbr(URL) {
newWindow = window.open(URL,'Nieuwsbrief','width=640,height=430,top=0,left=0,toolbar=1,status=1, menubar=1,scrollbars=1');
}

function ancienedit(nr) {
var welkform = "ancienform"+nr;
document[welkform].submit();
}