sfHover = function() {
//	var sfEls = getElementsByAttribute(document.getElementById("hoofdmenu"),"li","u:hoofdmenu","true");
var sfEls = document.getElementById("topmenu").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
	sfEls[i].onmouseover=function() {
		this.className+=" ie_does_hover";
	}
	sfEls[i].onmouseout=function() {
		this.className=this.className.replace(new RegExp(" ie_does_hover\\b"), "");
	}
}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);