function startList() {
	if (document.all&&document.getElementById) {
		navContainer = document.getElementById("mainNav");
		for (i=0; i<navContainer.childNodes.length; i++) {
		    node = navContainer.childNodes[i];
		    if(node.nodeName=="UL"){
		        navRoot = node;
		        break;
		    }
		}
		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", "");
				}
			}
		}
	}
}