$(document).ready(function() {
		// set opacity to nill on page load
		$("ul#navigation li a span").fadeOut(0);
		// on mouse over
		$("ul#navigation li a").hover(function () {
			// animate opacity to full
			$(this).children("span").fadeIn('normal');
		},
		// on mouse out
		function () {
			// animate opacity to nill
			$(this).children("span").fadeOut('normal');
		});
});