ratingStarsCallback ({
 "rate_text_info" : "Rate this document:",
 "stars":
     {
         "rating_1" : "Not helpful at all",
         "rating_2" : "Not very helpful",
         "rating_3" : "Somewhat helpful",
         "rating_4" : "Very helpful",
         "rating_5" : "Extremely helpful"
     }
});