TestimonialBox = {
    Init: function () {

        setInterval(function () {
            TestimonialBox.NextItem()
        }, 4000);

    }
    , NextItem: function () {

        var currentIndex = $(".testimonialbox .current_index").html();
        var lastIndex = $(".testimonialbox .last_index").html();

        var nextIndex = parseInt(currentIndex) + 1;
        if (nextIndex > lastIndex) {
            nextIndex = parseInt(0);
        }

        $(".item_" + currentIndex).fadeOut('fast', function () {
            $(".item_" + nextIndex).fadeIn('fast');
        });

        $(".testimonialbox .current_index").html(nextIndex);

    }
}

$(document).ready(TestimonialBox.Init);