Facebook Login Redirect

I am using a Facebook Login Button on my main page - http://example.com. How do I redirect my user to http://ift.tt/1ijnviU after login?

Is it got to do with the Valid OAuth redirect URIs? Please advice?

Or is it a redirect using the onlogin function as below?

<div class="fb-login-button" data-max-rows="1" data-size="large" data-show-faces="false" data-auto-logout-link="true" onlogin="href.location='http://ift.tt/1ijnviU'">

Please advice. Thank you.