function startList (id) {
      if (document.all&&document.getElementById) {
            navRoot = document.getElementById(id);
            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", "");
                        }
                  }
            }
      }
}  

function startList2 () {
    startList('top_menu1');
    startList('top_menu2');
    startList('top_menu3');
    startList('top_menu4');
    startList('top_menu5');
    startList('top_menu6');
}