var timeout    = 500;
var closetimer = 0;
var ddmenuItemsitem = 0;

function menuItems_open()
{  menuItems_canceltimer();
   menuItems_close();
   ddmenuItemsitem = $(this).find('ul').css('visibility', 'visible');}

function menuItems_close()
{  if(ddmenuItemsitem) ddmenuItemsitem.css('visibility', 'hidden');}

function menuItems_timer()
{  closetimer = window.setTimeout(menuItems_close, timeout);}

function menuItems_canceltimer()
{  if(closetimer)
   {  window.clearTimeout(closetimer);
      closetimer = null;}}

$(document).ready(function()
{  $('#menuItems > li').bind('mouseover', menuItems_open)
   $('#menuItems > li').bind('mouseout',  menuItems_timer)});

document.onclick = menuItems_close;