var timeout    = 500;
var closetimer = 0;
var ddmenuitem = 0;

function menyUl_open()
{  menyUl_canceltimer();
   menyUl_close();
   ddmenuitem = $(this).find('ul').css('visibility', 'visible');}

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

function menyUl_timer()
{  closetimer = window.setTimeout(menyUl_close, timeout);}

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

$(document).ready(function()
{  $('.meny > li').bind('mouseover', menyUl_open)
   $('.meny > li').bind('mouseout',  menyUl_timer)});

document.onclick = menyUl_close;