title: Logging out user from application FB.logout() not facebook
body: <p>I have read Facebook documentation and it says that <code>FB.logout</code> is used to log the user out of both web application and Facebook. I have made a website on which I use <code>FB.logout()</code> but I want only the session of the user to be revoked not log the user out of the Faceboook.
  I have seen this thing been done on many other websites looking at their code I find they are also using code like</p>
  
  <pre><code>function fb_logout(){
              FB.logout(function(response) {
              console.log('loggedout');
              });
          }
  </code></pre>
  
  <p>I also tried using this function but I still log my users out of Facebook too.
  Is there a way to accomplish this task?</p>