title: How can I login as a different user in Facebook login dialog
body: <p>I managed to develop an android application to read facebook updates of the user. 
  I am using Facebook dialog for Authentication.</p>
  
  <p>Once I have authenticated the user and allowed the application to access the account, the dialog quits and it is able to read the status. Perfect.</p>
  
  <p>But I am not able to login as a different user. In all the further loads of dialog, it shows nothing. Seems like, it is authenticating the same user again and disappears.</p>
  
  <p>How can I bring the content of the dialog visible again?  </p>