ive').removeClass('active');
      }
      $this.toggleClass('active');
      // Filter elements
      $grid.shuffle( 'shuffle', group );
    });
    $btns = null;
  },
  // Re layout shuffle when images load. This is only needed
  // below 768 pixels because the .picture-item height is auto and therefore
  // the height of the picture-item is dependent on the image
  // I recommend using imagesloaded to determine when an image is loaded
  // but that doesn't support IE7
  listen = function() {
    var debo