[cyber]

function Sub(event){                             // вызов меню кликом
  event = event || window.event
  event.stopPropagation ? event.stopPropagation() : (event.cancelBubble=true)
    var sub_m=document.getElementById('sub_menu_m');
    var sub_v=document.getElementById('sub_menu_v');
    sub_m.style.display = (sub_m.style.display == "none") ? "block" : "none";
    sub_v.style.display = (sub_v.style.display == "none") ? "block" : "none";
setTimeout("Sub3(event);",15000)//вызовет через 15 секунд функцию закрытия
}