var rotationCount = 1;
var totalRotations = 2;
$(document).ready(function() {
    //Set Default State of each portfolio piece
    $(".slider_paging").show();
    $(".slider_paging a:first").addClass("active");

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

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

    //Paging + Slider Function
    rotate = function() {

        if (rotationCount / imageSum < totalRotations) {
            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

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

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

            rotationCount++;
        }
    };

    //Rotation + Timing Event
    rotateSwitch = function() {
        play = setInterval(function() { //Set timer - this will repeat itself every 3 seconds
            $active = $('.slider_paging a.active').next();
            if ($active.length === 0) { //If paging reaches the end...
                $active = $('.slider_paging a:first'); //go back to first
            }
            rotate(); //Trigger the paging and slider function
        }, 8000); //Timer speed in milliseconds (3 seconds)
    };

    rotateSwitch(); //Run function on launch

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

    //On Click
    $(".slider_paging a").click(function() {
    rotationCount = 0;
        $active = $(this); //Activate the clicked paging
        //Reset Timer
        clearInterval(play); //Stop the rotation
        rotate(); //Trigger rotation immediately
        rotateSwitch(); // Resume rotation
        rotationCount = 1000;
        return false; //Prevent browser jump to link anchor
    });

});