var timeout         = 200;
var closetimer		= 0;
var ddmenuitem      = 0;

function topmenu_open(){
topmenu_canceltimer();
topmenu_close();
ddmenuitem = $(this).find('ul').eq(0).css('visibility', 'visible');}

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

function topmenu_timer(){
closetimer = window.setTimeout(topmenu_close, timeout);}

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

$(document).ready(function(){
$('#topmenu > li').bind('mouseover', topmenu_open)
$('#topmenu > li').bind('mouseout',  topmenu_timer)});

document.onclick = topmenu_close;