open new url at end of a slideshow instead of re-start the plugin

open new url at end of a slideshow instead of re-start the plugin

Hi, I'm using this rotator plugin for a slideshow.
http://www.sohtanaka.com/web-design/examples/image-slider/
It owrks fine, but I need at the end of the image slideshow (in that example, the fourth one) NOT to re-start all image sliding, but to go to another page.

I modified the rotator js adding a "get" instruction, but nothing happens. No other html page opens.
What's wrong?

$(document).ready(function() {

    //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 img").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 = $.get("http://www.testlinktoopen.it");
            }
            rotate(); //Trigger the paging and slider function
        }, 1000); //Timer speed in milliseconds (3 seconds)
    };
   
    rotateSwitch(); //Run function on launch
   
    //On Hover
    $(".image_reel a").hover(function() {
        clearInterval(play); //Stop the rotation
    }, function() {
        rotateSwitch(); //Resume rotation
    });   
   
    //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
    });   
   
});