var currentSubMenu = null; 
  var currentSubMenuNum = 0; 
  var closeTimer = null; 
  function openSubMenu(num) 
  {
     var subMenu = document.getElementById("ctl04_subMenu" + num);
     if (subMenu == null)
         subMenu = document.getElementById("ctl05_subMenu" + num);
    if (subMenu != null) 
    { 
      cancelCloseTime(); 
      subMenu.style.display=''; 
      if ((currentSubMenu != null) && (currentSubMenuNum != num)) 
      { 
        currentSubMenu.style.display='none'; 
      } 
      currentSubMenu = subMenu; 
      currentSubMenuNum = num; 
    } 
  } 
  function closeTime() 
  {
      closeTimer = window.setTimeout(closeMenu, 1000); 
  } 
  function cancelCloseTime() 
  { 
    if (closeTimer != null) 
    { 
      window.clearTimeout(closeTimer); 
      closeTimer = null; 
    } 
  } 
  function closeMenu() 
  { 
    if (currentSubMenu != null) 
    { 
      currentSubMenu.style.display='none'; 
      currentSubMenu = null; 
      currentSubMenuNum = 0; 
    } 
  } 
  document.onclick = closeMenu;