function BrowserSniff() {
   var ua = navigator.userAgent.toLowerCase();
   this.isIE = (ua.indexOf('msie') != -1 );
   this.isMac = (ua.indexOf('mac') != -1);
   this.versionMinor = parseFloat(navigator.appVersion);
   if (this.isIE && this.versionMinor >= 4) this.versionMinor = parseFloat( ua.substring( ua.indexOf('msie ') + 5 ) );
   this.versionMajor = parseInt(this.versionMinor);
   this.isIE6up = (this.isIE && this.versionMajor >= 6);
}
//var browser = new BrowserSniff();
//if ((browser.isIE) && !(browser.isIE6up) && !(browser.isMac)) { document.write("<link rel='stylesheet' href='/isroot/entertainment/css/ie5.css' type='text/css'>"); }

var mTimer;
function activate(id, tabid){
	if(id.className)id.className='actief';
	if(document.getElementById)document.getElementById(tabid).src=document.getElementById(tabid).src.replace(/tab\.gif/,'tab_actief.gif');
	if(!document.getElementById && document.all)document.all[tabid].src=document.all[tabid].src.replace(/tab\.gif/,'tab_actief.gif');
}

function deActivate(id, tabid){
	if(id.className)id.className='inactief';
	if(document.getElementById)document.getElementById(tabid).src=document.getElementById(tabid).src.replace(/tab_actief\.gif/,'tab.gif');
	if(!document.getElementById && document.all)document.all[tabid].src=document.all[tabid].src.replace(/tab_actief\.gif/,'tab.gif');
}

function showLayer(id){
	if(document.getElementById)document.getElementById(id).style.visibility = 'visible';
	if(!document.getElementById && document.all)document.all[id].style.visibility = 'visible';
}

function hideLayer(id){
	if(document.getElementById)document.getElementById(id).style.visibility = 'hidden'
	if(!document.getElementById && document.all)document.all[id].style.visibility = 'hidden';
}

function displayLayer(id, action){
	// action= 'block' || 'none'
	if(document.getElementById)document.getElementById(id).style.display = action;
	if(!document.getElementById && document.all)document.all[id].style.display = action;
}

function startTimer(val){
	if(val != '')mTimer = setTimeout(hideLayerSnelNaar,val);
}

function hideLayerSnelNaar() {
  hideLayer('overigesites');
}

function stopTimer(){
	clearTimeout(mTimer);
}

function clearDefault(id,defaultVal){
	if(document.getElementById)if (document.getElementById(id).value == defaultVal)document.getElementById(id).value = '';
	if(!document.getElementById && document.all)if(document.all[id].value == defaultVal)document.all[id].value = ''
}

function restoreDefault(id,defaultVal){
	if(document.getElementById)if (document.getElementById(id).value == '')document.getElementById(id).value = defaultVal;
	if(!document.getElementById && document.all)if(document.all[id].value == '')document.all[id].value = defaultVal;
}
function validateDefault(id,defaultVal){
	if(document.getElementById)if (document.getElementById(id).value == '' || document.getElementById(id).value == defaultVal){alert('U heeft de volgende velden nog niet ingevuld: \n\n' + '-' + id);return false;}
	if(!document.getElementById && document.all)if(document.all[id].value == '' || document.all[id].value == defaultVal){alert('U heeft de volgende velden nog niet ingevuld: \n\n' + '-' + id);return false;}
	return true;
}
function openWindow(url){
	window.open(url);
	return;
}

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];}
}