Self.photoswipe = function(){
    var $pswp = $('.pswp')[0];

    $('.gallery-lists').each(function() {
      var $pic     = $(this),
      getItems = function() {
        var items = [];
        $pic.find('.gallery-item:not(.isotope-hidden):not(.slick-cloned) a.photoswipe-link').each(function() {
          var $href   = $(this).attr('href'),
          $size   = $(this).data('size').split('x'),
          $width  = $size[0],
          $height = $size[1];

          var item = {
            src : $href,
            w   : $width,
            h   : $height
          };

          items.push(item);
        });
        return items;
      };


      $pic.find('a.photoswipe-link').click( function(event) {
        event.preventDefault();
        var items = getItems();
        var slick = $('.gallery-element').data('slick');
        var $index = $(this).data('index'),
        $items = $pic.find('.gallery-item:not(.isotope-hidden):not(.slick-cloned)'),
        parent = $(this).closest('.gallery-item'),
        index = $items.index(parent);
        var options = {
          index: index,
          bgOpacity: 0.7,
          showHideOpacity: true
        };

        // Initialize PhotoSwipe
        var lightBox = new PhotoSwipe($pswp, PhotoSwipeUI_Default, items, options);
        lightBox.init();
      });
    });
  };