var toggleDivClassName = "nieuwsitem";
	var toggleDivSpeedMultiplier = 1.1;
	var toggleDivDelay = 10;
	var toggleDivOnlyOneOpen = true;
	var toggleDivs = new Array();
	var togglingDivs = new Object();
	
	function toggleDiv(divId,action) {
		var d = document.getElementById(divId);
		if (d==null || d.tagName!="DIV" || !d.offsetHeight || togglingDivs[divId]) { return; }

		d.style.overflow = "hidden";
		if (action=="open" || (typeof(action)=="undefined" && d.style.visibility=="hidden")) {
			if (toggleDivOnlyOneOpen) {
				setTimeout("closeAllToggleDivsExcept('"+divId+"')",5);
			}
			// open it
			var originalHeight = d.offsetHeight;
			var height = 1;
			d.style.height = height+"px";
			d.style.visibility = "visible";
			d.style.position="static";
			togglingDivs[divId] = true;
			setTimeout("toggleObject('"+divId+"','open',"+originalHeight+","+height+")",toggleDivDelay);
		}
		else if (action=="close" || (typeof(action)=="undefined" && d.style.visibility=="visible")) {
			// close it
			var originalHeight = d.offsetHeight;
			var height = originalHeight;
			togglingDivs[divId] = true;
			setTimeout("toggleObject('"+divId+"','close',"+originalHeight+","+height+")",toggleDivDelay);
		}	
	}

	// This function closes all DIVs except the given ID, for use when only one DIV should be open at any time
	function closeAllToggleDivsExcept(divId) {
		for (var i=0; toggleDivs!=null && i<toggleDivs.length; i++) {
			if (toggleDivs[i].id!=divId) {
				toggleDiv(toggleDivs[i].id,'close');
			}
		}
	}

	// The function that is called repeatedly until the toggle is done
	function toggleObject(divId, openClose, originalHeight, height) { 
		var d = document.getElementById(divId);
		if (d==null || d.tagName!="DIV") { return; }
		
		if (openClose=="open") {
			height = height * toggleDivSpeedMultiplier;
			if (height > originalHeight) {
				d.style.height = originalHeight+"px";
				delete togglingDivs[divId];
			}
			else {
				d.style.height = height+"px";
				setTimeout("toggleObject('"+divId+"','"+openClose+"',"+originalHeight+","+height+")",toggleDivDelay);
			}
		}
		else {
			height = height * (1/toggleDivSpeedMultiplier);
			if (height <= 1) {
				d.style.position = "absolute";
				d.style.visibility = "hidden";
				d.style.height = originalHeight+"px";
				delete togglingDivs[divId];
			}
			else {
				d.style.height = height+"px";
				setTimeout("toggleObject('"+divId+"','"+openClose+"',"+originalHeight+","+height+")",toggleDivDelay);
			}
		}
	}

	// A function which is called onload of the window, to hide all the toggle divs initially. This is done
	// so that non-JS browsers will see the divs rather than have them be hidden.
	function hideToggleDivs() {
		var divs = document.getElementsByTagName("DIV");
		for (var i=0; divs!=null && i<divs.length; i++) {
			if (divs[i].className.indexOf(toggleDivClassName)>-1) {
				toggleDivs[toggleDivs.length] = divs[i];
				var s = divs[i].style;
				s.position="absolute";
				s.visibility="hidden";
			}
		}
		toggleDiv('nieuws1');	}
	
	// A general function to add an event handler
	function addHandler(obj, evt, newhandler, captures) {
		if (obj.attachEvent) {
			obj.attachEvent('on' + evt, newhandler);
		}
		else if (obj.addEventListener) {
			obj.addEventListener(evt, newhandler, captures);
		}
		else {
			var oldhandler;
			if (oldhandler = obj['on' + evt]) {
				obj['on' + evt] = function() {
					oldhandler();
					newhandler();
				}
			}
			else {
				obj['on' + evt] = newhandler;
			}
		}
	}

	// Attach an onLoad handler to the window to initially hide all the toggle DIV objects.
	// Only do it if sufficient JS capability is present in the browser
	if (document.getElementById && document.getElementsByTagName) {
		addHandler(window,'load',hideToggleDivs,false);
	}