var timeout         = 500;
var closetimer		= 0;
var ddmenuitem      = 0;

function globalnav_open()
{	globalnav_canceltimer();
	globalnav_close();
	ddmenuitem = $(this).find('ul').eq(0).css('visibility', 'visible');}

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

function globalnav_timer()
{	closetimer = window.setTimeout(globalnav_close, timeout);}

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

$(document).ready(function()
{	$('#globalnav > li').bind('mouseover', globalnav_open);
	$('#globalnav > li').bind('mouseout',  globalnav_timer);});

document.onclick = globalnav_close;