var timeout = 200;
var closetimer = 0;
var uvamenu = 0;

function uva_open(){
	uva_canceltimer();
	uva_close();
	uvamenu = $(this).find('ul').css('visibility', 'visible');
}

function uva_close(){
	if (uvamenu) uvamenu.css('visibility', 'hidden');
}

function uva_timer(){
	closetimer = window.setTimeout(uva_close, timeout);
}

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

$(document).ready(function(){

	$('#primary > li').bind('mouseover', uva_open)
	$('#primary > li').bind('mouseout',  uva_timer)

});

document.onclick = uva_close;