var timeout=0
var closetimer=0
var ddmenuitem=0
function nav_open()
{nav_canceltimer()
nav_close()
ddmenuitem=$(this).find('ul').eq(0).css('visibility','visible');}
function nav_close()
{if(ddmenuitem)ddmenuitem.css('visibility','hidden');}
function nav_timer()
{closetimer=window.setTimeout(nav_close,timeout);}
function nav_canceltimer()
{if(closetimer)
{window.clearTimeout(closetimer)
closetimer=null;}}
$(document).ready(function()
{$('#nav > li').bind('mouseover',nav_open)
$('#nav > li').bind('mouseout',nav_timer);})
document.onclick=nav_close