$(document).ready(function () {
    $(".menuItem").mouseover(function () {
        $(this).attr('src', $(this).attr('src').replace('1_', '2_'));
    });
    $(".menuItem").mouseout(function () {
        $(this).attr('src', $(this).attr('src').replace('2_', '1_'));
    });

    $("a[rel^='prettyPhoto']").prettyPhoto({
        social_tools: '',
        theme: 'facebook'});
});