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;