I have a facebook app that's part of a fb page (it's a tab on the left side), there's an image on the app that says something like "like our page". Once they like the page I want to be able to change it out to something else. How do I go about doing this?
Basically my app is just an iframe that includes this facebook script:
<script src="//connect.facebook.net/en_US/all.js" type="text/javascript" type="text/javascript"></script>
The rest of the app is a form.