startList = function() {
	if (document.all&&document.getElementById) {
	navRoot = document.getElementById("mainNav1");
		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", "");
	   			}
	   		}
	  	}
	 }
}
window.onload=startList;