startList = function() {
	if (document.all && document.getElementById) {
		navRoot = document.getElementById("nav");
 		nodeNum = navRoot.childNodes.length;
		for (i=0; i<nodeNum; i++) {
			 nodeNext = navRoot.childNodes[i];
			 nodeNumUl = nodeNext.childNodes.length;
			 //alert(nodeNumUl);
			 for (j=0;j<nodeNumUl; j++) {
				node = nodeNext.childNodes[j];
				//alert(node.nodeName);
  				if (node.nodeName=="LI") {
  					node.onmouseover=function() {
  						this.className+=" over";
						//alert("over");
    				}
 					 node.onmouseout=function() {
  						this.className=this.className.replace(" over", "");
  					}
				}
   			}
  		}
 	}
}
window.onload=startList;