JQuery Автоматический Ползунок Изображения w/CSS и jQuery

Это - Автоматический Ползунок Изображения w/CSS и jQuery Soh Tanaka, которого я пытаюсь настроить его для показа .desc, когда верхние мячи парения мыши ползунок, но это, кажется, не работает никакая справка?

//Set Default State of each portfolio piece
$(".paging").show();
$(".paging a:first").addClass("active");

//Get size of images, how many there are, then determin the size of the image reel.
var imageWidth = $(".window").width();
var imageSum = $(".image_reel ul.examples").size();
var imageReelWidth = imageWidth * imageSum;

//Adjust the image reel to its new size
$(".image_reel").css({'width' : imageReelWidth});

//Paging + Slider Function
rotate = function(){    
    var triggerID = $active.attr("rel") - 1; //Get number of times to slide
    var image_reelPosition = triggerID * imageWidth; //Determines the distance the image reel needs to slide

    $(".paging a").removeClass('active'); //Remove all active class
    $active.addClass('active'); //Add active class (the $active is declared in the rotateSwitch function)

    //Slider Animation
    $(".image_reel").animate({ 
        left: -image_reelPosition
    }, 500 );

}; 

//Rotation + Timing Event
rotateSwitch = function(){      
    play = setInterval(function(){ //Set timer - this will repeat itself every 3 seconds
        $active = $('.paging a.active').next();
        if ( $active.length === 0) { //If paging reaches the end...
            $active = $('.paging a:first'); //go back to first
        }
        rotate(); //Trigger the paging and slider function
    }, 7000); //Timer speed in milliseconds (3 seconds)
};

rotateSwitch(); //Run function on launch

//On Hover
$(".image_reel").hover(function() {
    clearInterval(play); //Stop the rotation
}, function() {
    rotateSwitch(); //Resume rotation
}); 

//Hide the tooglebox when page load
$(".desc").hide();
//slide up and down when hover over heading 2
$(".image_reel").hover(function(){
// slide toggle effect set to slow you can set it to fast too.
$(this).next(".desc").slideToggle("slow");
return true;
});


//On Click
$(".paging a").click(function() {   
    $active = $(this); //Activate the clicked paging
    //Reset Timer
    clearInterval(play); //Stop the rotation
    rotate(); //Trigger rotation immediately
    rotateSwitch(); // Resume rotation
    return false; //Prevent browser jump to link anchor
});