code: function(content) {
          if (content.callback) {
              var namespaces = content.callback.split('.'),
                  func = window, prev = func;
  
              for (var i = 0; i < namespaces.length; i++) {
                  prev = func;
                  func = func[namespaces[i]];
              }
  
              func.call(prev, content);
          }
  
          this.fireEvent('process', [content]);
  
          this.hide();
      }
docs: Handle and process non-HTML responses.
  
  @param {*} content