$(function() {      
    $("#imageGallery li").hover(
        function() {
            var img='resources/gfx/img-'+($(this).attr('class'))+'.jpg';
            $("#imageGallery img").attr('src',img);//$(this).children("ul").stop().hide().css("height","auto").slideDown("slow");
        },
        function() {
        //$(this).children("ul").stop().slideUp("slow");
    });   
});