title: Show text when user likes a FB page
body: <p>We're trying to do some things on Facebook but to be honest we have no idea where to start.</p>
  
  <p>We have a Facebook application which doesn't require any authorization. It's basically just a static page showing some of our information at the moment. We added it to a page as a tab.</p>
  
  <p>We want to show some welcome text when a user likes our page. How should we go about this? I haven't used the Facebook SDK before so I'm completely lost.</p>
  
  <p>Can we do this through the JS SDK? Check if a user has already liked our page and show a welcome message, otherwise show the like button? We're working with Heroku FB apps, not sure if that's important.</p>
  
  <p>I'm not looking for complete example code, just some pointers would be nice.</p>
  
  <p>Thanks in advance.</p>