title: use enter to post a comment with facebook comment plugin
body: <p>Can I use enter to post a comment with comment plugin as the one in Club in facebook?</p>
  
  <p>I'd like to let the users in my site to comment without any extra movement(like move the mouse to click on "commnet")</p>
  
  <p>Is that possible with facebook comment plugin?</p>
  
  <p>Thanks!</p>