var divElement;
var timeout;

function pulldown(num){
  element=document.getElementById("menu"+num);
  if (element!=null)
    element.className="menutd_hilite";
  for (i=1;i<=20;i++){
    if (num!=i)
      pullup1(i);
  }
  element=document.getElementById("submenu"+num);
  if (element!=null){
    clearTimeout(timeout);
    element.style.visibility="visible";
    element.style.display="block";
  }
}

function pullup1(num){
  element=document.getElementById("menu"+num);
  if (element!=null)
    element.className="menutd";
  element=document.getElementById("submenu"+num);
  if (element!=null){
    element.style.visibility="hidden";
    element.style.display="none";
  }
}

function pullup(num){
  element=document.getElementById("menu"+num);
  if (element!=null)
    element.className="menutd";  
  element=document.getElementById("submenu"+num);
  if (element!=null){
    divElement=element;
    timeout=setTimeout("hide()",2000);
  }
}

function hide(){
    divElement.style.visibility="hidden";
    divElement.style.display="none";
}