function galleryRoll () {
    $("#course_ul").animate({
        opacity : 0
    }, fadeInOuTime, function () {
        $('.jquery_navigate').css('color', '#FFFFFF');
        $('.'+galleryRoll.value).css('color', '#CC0000');
        $("#course_ul").css({
            top : -(galleryRoll.value * 560)
        });
        $("#course_ul").animate({
            opacity : 1
        }, fadeInOuTime, function () {
            $(this).css("opacity", "");
        });
        galleryRoll.value++;
        if (galleryRoll.value == $(".jquery_navigate").length) {
            galleryRoll.value = 0;
        }
    });
}

var fadeInOuTime = 1500;
var galleryInterval = 20000;
var Int = false;

$(document).ready(function () {
    if ($(".jquery_navigate").length > 0) {
        if (typeof(galleryRoll.value) == 'undefined') {
            galleryRoll.value = 1;
        }

        $('.0').css('color', '#CC0000');

        $(".jquery_navigate").click(function () {
            galleryRoll.value = (parseInt($(this).text()) - 1);
            galleryRoll();
            window.clearInterval(Int);
            return false;
        });

        Int = window.setInterval(galleryRoll, galleryInterval);
    }

    $(".course_title").toggle(function () {
        $(this).next('div').slideDown();
    }, function () {
        $(this).next('div').slideUp()
    })
});