$(function() {
	// set opacity to null on page load
	$("ul#nav span").css("opacity","0");
	// on mouse over
	$("ul#nav span").hover(function () {
		// animate opacity to full
		$(this).stop().animate({
			opacity: 1
		}, 300);
	},
	// on mouse out
	function () {
		// animate opacity to null
		$(this).stop().animate({
			opacity: 0
		}, 200);
	});
});