function ResetTimer() {
 clearTimeout(timerID);
}

function StartTimer() {
 timerID = setTimeout('HideAll()', submenutime);
}

function HideMenu(menuid) {
 document.getElementById(menuid).style.display="none";
}

function ShowMenu(menuid) {
  HideAll(); 
 document.getElementById(menuid).style.display="block";
}

function HideAll() {
 for (i=1;i<=submenucount;i++) {
  HideMenu("sub"+i);
 }
}