$(document).ready(function(){
var timeout    = 450;
var closetimer = 0;
var ddmenuitem = 0;

function ddmenu_open()
{  ddmenu_canceltimer();
   ddmenu_close();
   ddmenuitem = $(this).find('ul:first').css('visibility', 'visible');
   $(this).children("ul").siblings("a").removeClass('menu').addClass('hover');
}

function ddmenu_close()
{  if(ddmenuitem) ddmenuitem.css('visibility', 'hidden');
	$("#menu > li > ul").siblings("a").removeClass('hover').addClass('menu');
}

function ddmenu_timer()
{  closetimer = window.setTimeout(ddmenu_close, timeout);}

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

$(document).ready(function()
{  $('#menu > li').bind('mouseover', ddmenu_open)
   $('#menu > li').bind('mouseout',  ddmenu_timer)
});
document.onclick = ddmenu_close; 
});