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