// execute your scripts when the DOM is ready. this is a good habit
$(document).ready(function() {

    // initialize scrollable
    $("div.scrollable").scrollable({ size: 1 }).circular().navigator(".navi");

    $(".items .item").mouseenter(function() { $(this).children(".hide").slideDown(); });
    $(".items .item").mouseleave(function() { $(this).children(".hide").fadeOut(); });

});