$(document).ready(function(){
    $("#animation-3 li").append("<span></span>");
    $("#animation-3 li a").hover(
        function(){
            $(this).next("span").animate({
                bottom: "0px"
            }, 300 );
        },function(){
            $(this).next("span").animate({
                bottom: "100px"
            }, 300 );
                        
        });	

});