var play=null;
$(document).ready(function() {
        //Show the paging and activate its first link
        $(".paging").show();
        $(".paging a:first").addClass("active");

        //Get size of the image, how many images 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  and 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
            }, 1000 );

        }; 

        //Rotation  and Timing Event
        rotateSwitch = function(){
            play = setInterval(function(){ //Set timer - this will repeat itself every 7 seconds
                $active = $('.paging a.active').next(); //Move to the next paging
                if ( $active.length === 0) { //If paging reaches the end...
                    $active = $('.paging a:first'); //go back to first
                }
                rotate(); //Trigger the paging and slider function
            }, 10000); //Timer speed in milliseconds (7 seconds)
        };

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

    //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 timer
        return false; //Prevent browser jump to link anchor
    });
});