startList = function() {
 if (document.all&&document.getElementById) {
 navRoot = document.getElementById("nav");
 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;