title: Facebook like detector
body: <p>I want to add a Facebook like button iframe in a div. Is there a way to check that whether the person have liked the page or not? Through this I want to set the behavior of the div. Means that if the page is already liked by the person then no div should appear, and if it is not, only then it should appear.</p>
  
  <p>I found <a href="https://stackoverflow.com/questions/6246449/facebook-how-to-check-if-user-has-liked-page-and-show-content">this</a>. But I am not building an app. So can it work? </p>