It displays the current content rating level by the number of starts from 1 to 5.
An user can submit his own rating by clicking on the respective star.
When a new rating is submitted, an AJAX request is triggered to send the user rating.
The AJAX request response is used to display the updated star rating level.

Download:
http://www.ziddu.com/download/7545062/rating-2009-07-11.zip.html