var timeout         = 1;
var closetimer		= 0;
var ddmenuitem      = 0;
var ddmenuitemtop      = 0;
function navitem_open(){	
	navitem_canceltimer();
	navitem_close();
	ddmenuitem = $(this).find('ul').eq(0).css('visibility', 'visible');
	ddmenuitemtop = $(this).find('a').eq(0).addClass('itemhighlight');
}
function navitem_close(){
	if(ddmenuitem) ddmenuitem.css('visibility', 'hidden');
	if(ddmenuitemtop) ddmenuitemtop.removeClass('itemhighlight');
}
function navitem_timer(){
	closetimer = window.setTimeout(navitem_close, timeout);
}
function navitem_canceltimer(){
	if(closetimer){	
		window.clearTimeout(closetimer);
		closetimer = null;
	}
}
$(document).ready(function(){$('#main-nav > li').bind('mouseover', navitem_open);$('#main-nav > li').bind('mouseout',  navitem_timer);});
document.onclick = navitem_close;