var timeout = 400;
var closetimer = 0;
var ddmenuitem = 0;
function dropDown_open(){
dropDown_canceltimer();
dropDown_close();
ddmenuitem = $(this).find('ul').eq(0).css('visibility', 'visible');}
function dropDown_close(){
if(ddmenuitem) ddmenuitem.css('visibility', 'hidden');}
function dropDown_timer(){
closetimer = window.setTimeout(dropDown_close, timeout);}
function dropDown_canceltimer(){
if(closetimer){
window.clearTimeout(closetimer);
closetimer = null;}}
$(document).ready(function(){
$('#dropDown > li').bind('mouseover', dropDown_open)
$('#dropDown > li').bind('mouseout',  dropDown_timer)});
document.onclick = dropDown_close;