startList=function(){
if(document.all&&document.getElementById){
var navRoot=document.getElementById("nav");
var i=0;for(i;i<navRoot.childNodes.length;i++){
var 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;