ieHover = function() {
	var ieEls = document.getElementById("topmenu").getElementsByTagName("LI");
	for (var i=0; i<ieEls.length; i++) {
		ieEls[i].onmouseover=function() {
			if(this.className.indexOf("parent")>0)this.className+=" iehover parenthover";
			else this.className+=" iehover";
			document.getElementById('aanbod').style.display='none';
		}
		ieEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" iehover\\b"), "");
			document.getElementById('aanbod').style.display='inline';
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", ieHover);