title: Facebook iframe application insert comment , like and share
body: <p>I'm creating my facebook APP with Html iframe.</p>
  
  <p>I need , when the user arrive on the app in facebook site, the can comment, like and share the application.</p>
  
  <p>Some times ago I do this with the <code>&lt;fb:comments&gt;</code> and something else, but now I've read that I must to use the Javascript SDK but I don't found clear informations.</p>
  
  <p>Can you please help me?</p>
  
  <p>Thanks </p>