var t=false,current;

function SetupMenu() {

   if (!document.getElementsByTagName) return;

   items=document.getElementsByTagName("li");

   for (i=0; i<items.length; i++) {

      if (items[i].className != "menu") continue;

      thelink=findChild(items[i],"A");

      thelink.onmouseover=ShowMenu;

      thelink.onmouseout=StartTimer;

      if (ul=findChild(items[i],"UL")) {

         ul.style.display="none";

         for (j=0; j<ul.childNodes.length; j++) {

            ul.childNodes[j].onmouseover=ResetTimer;

            ul.childNodes[j].onmouseout=StartTimer;
         }
      }
   } 
}

function findChild(obj,tag) {
   cn = obj.childNodes;
   for (k=0; k<cn.length; k++) {
     if (cn[k].nodeName==tag) return cn[k];
   }
   return false;
}


function ShowMenu(e) {
   if (!e) var e = window.event;
   thislink = (e.target) ? e.target: e.srcElement;
   ResetTimer();
   if (current) HideMenu(current);
   thislink = thislink.parentNode;
   current=thislink;
   ul = findChild(thislink,"UL");
   if (!ul) return;
   ul.style.display="block";
}

function HideMenu(thelink) {
   ul = findChild(thelink,"UL");
   if (!ul) return;
   ul.style.display="none";
}

function ResetTimer() {
   if (t) window.clearTimeout(t);
}

function StartTimer() {
   t = window.setTimeout("HideMenu(current)",200);
}

window.onload=SetupMenu;