if (supported)
{	
	//vars voor tellen van aantal item div's
	var allDivs = document.getElementsByTagName('div');
	var el, i = 0, howmany = 0; 
	//images voor uitklappijltje
	var minus		= new Image();	minus.src	= "/images/nl/content/icon_min.gif"; //"/gfx/el_minus.gif";
	var plus		= new Image();	plus.src	= "/images/nl/content/icon_plus.gif"; //"/gfx/el_plus.gif";
	//kleuren van tr background 
	var normalCol	= ''; //'#ECF1F6';
	var overCol	= ''; //'#DAE4ED';
	var activCol	= ''; //'#7B9ABA';
	var overActCol	= ''; //'#90ACC6';
	//kleuren van tekst
	var normalTxt	= ''; //'#165786';
	var activTxt	= ''; //'#ffffff';
	// array voor welke open/dicht is geklapt
	var shown = new Array();
	var showdate = showdate ? true : false;
	//onload functie voor tellen en dichtklappen van de item div's
	//onload = function() 
	//{
		//var howmany = howmanyDiv()+1;
		//showall();
	//}
	// array shown 
	for (var i=1;i<=howmanyDiv();i++)
	{
		shown[i+1] = false;
	}
}

// functie voor tellen van aantal item div's
function howmanyDiv(){
var howmany=0;
for(var i=0, n=allDivs.length; i<n; i++)
{
	var el = allDivs.item(i);
	if(el.id.substr(0,4)=='item')
		howmany++;
}
return howmany;
}
// functie voor klik op een item show/hide
function blocking(i){
if (supported){
//shown display, img, color true/false
shown[i] = (shown[i]) ? false : true;
current = (shown[i]) ? 'block' : 'none';
active = (shown[i]) ? 'minus' : 'plus';
trColor = (shown[i]) ? activCol : overCol;
txtColor = (shown[i]) ? activTxt : normalTxt;
	//display open/dicht
	document.getElementById('item'+i).style.display = current;
	//img plus of min
	document ['klap'+i].src = eval(active+".src");
	//tr bg color
	//document.getElementById('link'+i).style.backgroundColor=trColor;
	//anchor txt color
	//document.getElementById('anchor'+i).style.color=txtColor;
	//if (showdate == true){
	//document.getElementById('date'+i).style.color=txtColor;
	//}
}
}

//klap alles open
function showall(){
if (!supported){
	alert('Deze functionaliteit werkt niet in uw browser. Download een nieuwe versie om deze functie te laten werken.');
	return;
}
else if (supported){
for (var i=1;i<=howmanyDiv();i++){
	document.getElementById('item'+i).style.display = 'block';
	document ['klap'+i].src = minus.src;
	//document.getElementById('link'+i).style.backgroundColor=activCol;
	//document.getElementById('anchor'+i).style.color=activTxt;
	//if (showdate == true){
	//document.getElementById('date'+i).style.color=activTxt;
	//}
	current = (shown[i]) = 'block';
	shown[i] = (shown[i]) = true;
	}
}
}
//klap alles dicht
function hideall(){
if (!supported){
	alert('Deze functionaliteit werkt niet in uw browser. Download een nieuwe versie om deze functie te laten werken.');
	return;
}
else if (supported){
for (var i=1;i<=howmanyDiv();i++){
	document.getElementById('item'+i).style.display = 'none';
	document ['klap'+i].src = plus.src;
	//document.getElementById('link'+i).style.backgroundColor=normalCol;
	//document.getElementById('anchor'+i).style.color=normalTxt;
	//if (showdate == true){
	//document.getElementById('date'+i).style.color=normalTxt;
	//}
	current = (shown[i]) = 'none';
	shown[i] = (shown[i]) = false;
	}
}
}
// verander tr achtergrondkleur
function over(tr){
if (supported){
	//var myElement = document.getElementById(tr);
	//myElement.style.cursor='hand';
	//if (shown[tr.substring(4,6)] == true){
	//	myElement.style.backgroundColor=activCol;
	//	if (shown[tr.substring(4,6)] == true){
	//		myElement.style.backgroundColor=overActCol;
	//	}
	//}
	//else{
	//	myElement.style.backgroundColor=overCol;
	//}
}
}
// verander tr achtergrondkleur
function out(tr){
if (supported){
	//var myElement = document.getElementById(tr);
	//myElement.style.cursor='hand';
	//if (shown[tr.substring(4,6)] == true){
	//	myElement.style.backgroundColor=activCol;
	//}
	//else{
	//	myElement.style.backgroundColor=normalCol;
	//}
}
}