ookmark = new Wookmark('#container', {
          offset: 2, // Optional, the distance between grid items
          itemWidth: 210, // Optional, the width of a grid item
          comparator: comparatorName
        });

        /**
         * When a filter is clicked, toggle it's active state and refresh.
         */
        var onClickSortBy = function(e) {
          e.preventDefault();
          var comparator;
          $currentSortby = $(this);
          switch ($currentSortby.data('sortby')) {
         