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", "");
         }
         }
        }
       }

       if (document.all&&document.getElementByClass) {
      tooltipRoot = document.getElementByClass("tooltip");
      for (i=0; i<tooltipRoot.childNodes.length; i++) {
      node = tooltipRoot.childNodes[i];
      if (node.nodeName=="DIV") {
      node.onmouseover=function() {
      this.className+=" over";
        }
        node.onmouseout=function() {
        this.className=this.className.replace(" over", "");
         }
         }
        }
       }

      }