var timeout    = 400;
var closetimer = 0;
var ddmenuitem = 0;

function jQmenu_open()
{  jQmenu_canceltimer();
   jQmenu_close();
   ddmenuitem = $(this).find('ul').css('visibility', 'visible');}

function jQmenu_close()
{  if(ddmenuitem) ddmenuitem.css('visibility', 'hidden');}

function jQmenu_timer()
{  closetimer = window.setTimeout(jQmenu_close, timeout);}

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

jQuery(document).ready(function()
{  jQuery('#jQmenu > li').bind('mouseover', jQmenu_open)
   jQuery('#jQmenu > li').bind('mouseout',  jQmenu_timer)});

document.onclick = jQmenu_close;