startList = function(){

	if (document.all){	// only applies to IE
	
		if (document.getElementById) {	// fail silently if not supported
		
			navRoot = document.getElementById("dropdown");
			for (i=0; i<navRoot.childNodes.length; i++) {
				node = navRoot.childNodes[i];
				if (node.nodeName=="LI") {
					node.onmouseover=function() {
						this.className+=" over";
					}
					node.onmouseout=function() {
						this.className=this.className.replace(" over", "");
					}
				}
			}
		}
	}
}

addEvent(window, 'load', startList);