$(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 = $('.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 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
  });
   });

    function swap(imageName,id)
    {
     myImage = new Image()
     myImage.src = "images/"+ imageName +".jpg"
     document.getElementById(id).src = myImage.src
    }