// JavaScript Document
    function toggle(submenu) {
   if (document.getElementById(submenu).style.display == "none")
   document.getElementById(submenu).style.display = "block";
   else if (document.getElementById(submenu).style.display == "block")
   document.getElementById(submenu).style.display = "none"
   else alert("An error occured in the menu. Contact the web master.");
   }