function startList() {
    if(!document.body.currentStyle) return;
    var subs = document.getElementsByName('submenu');
    for(var i=0; i<subs.length; i++) {
     var li = subs[i].parentNode;
     if(li && li.lastChild.style) {
      li.onmouseover = function() {
       this.lastChild.style.visibility = 'visible';
      }
      li.onmouseout = function() {
       this.lastChild.style.visibility = 'hidden';
      }
     }
    }
   }
   window.onload=startList;