code: function (key, value) {
  
                  if (value != null) {
                      //update aria values
                      var ariakey = 'aria-value' + ((key == 'value') ? 'now' : key);
                      var range = item.find('.rateit-range');
                      if (range.attr(ariakey) != undefined) {
                          range.attr(ariakey, value);
                      }
  
                  }
  
                  arguments[0] = 'rateit' + capitaliseFirstLetter(key);
                  return item.data.apply(item, arguments); ////Fix for WI: 523
              }
docs: shorten all the item.data('rateit-XXX'), will save space in closure compiler, will be like item.data('XXX') will become x('XXX')