var timeout         = 500;
var closetimer		= 0;
var ddmenuitem      = 0;
function menu_open(){
menu_canceltimer();
menu_close();
ddmenuitem = $(this).find('ul').eq(0).css('visibility', 'visible');}
function menu_close(){
if(ddmenuitem) ddmenuitem.css('visibility', 'hidden');}
function menu_timer(){
closetimer = window.setTimeout(menu_close, timeout);}
function menu_canceltimer(){
if(closetimer){
window.clearTimeout(closetimer);
closetimer = null;}}
$(document).ready(function(){
$('#menu > li').bind('mouseover', menu_open)
$('#menu > li').bind('mouseout',  menu_timer)});
document.onclick = menu_close;