function popSwap(element) {
	document.getElementById(element).style.visibility = "visible";
}

function popSwapClose() {
	document.getElementById('cover_wrapper').style.visibility = "hidden";
	document.getElementById('support_wrapper').style.visibility = "hidden";
}

$(function(){
	$('#menu ul li a')
		.css( {backgroundPosition: "0px -10px"} )
		.mouseover(function(){
			$(this).stop().animate({backgroundPosition:"(0px -174px)"}, {duration:350})
		})
		.mouseout(function(){
			$(this).stop().animate({backgroundPosition:"(0px -10px)"}, {duration:200, complete:function(){
			}})
		})
	});