var timeout			= 500;
var closetimer		= 0;
var topmenu_item	= 0;
var topmenu_active	= 0;

function topmenu_open() {
	topmenu_canceltimer();
	topmenu_close();

	topmenu_item	= $(this).addClass("active").find('ul').css('visibility', 'visible');
	topmenu_active	= $("#Menu").find('li.active');
}
function topmenu_close(){

	if(topmenu_item)
		topmenu_item.css('visibility', 'hidden');

	if(topmenu_active)
		topmenu_active.removeClass("active");
}

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

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

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

document.onclick = topmenu_close;