code: function (images, callback) {
          var self = this,
              unloaded = images.length;
  
          if (unloaded === 0) {
            callback(images);
          }
  
          images.each(function () {
            single_image_loaded(self.S(this), function () {
              unloaded -= 1;
              if (unloaded === 0) {
                callback(images);
              }
            });
          });
        }
docs: Description: Performs a callback function when an image is fully loaded  Arguments: Image (jQuery Object): Image(s) to check if loaded.  Callback (Function): Function to execute when image is fully loaded.