title: Don't display facebook like button for those who already liked it
body: <p>I want to display a Facebook like button for a page only for those who didn't like that page. So, when a user is already a fan of the page , the like button will not be shown.</p>
  
  <p>I did a lot of research and I found that I need to implement Facebook connect, and fetch the <code>user_likes</code> permission and check if the connected user has the page in his list. This is a working example <a href="http://www.fbrell.com/fb.api/does-like" rel="nofollow">http://www.fbrell.com/fb.api/does-like</a></p>
  
  <p>Basicaly, I need the code that will do this : </p>
  
  <p>When the user clicks on connect, the content will be changed and the Facebook like button will be shown if the connected user didn't like it in the past.</p>