initSucker = function() {
   if (document.all&&document.getElementById) {
      navRoot = document.getElementById("udm");
      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","");
            }
         }
       }
   }
 }
if (window.attachEvent){
   window.attachEvent("onload",initSucker);
}