title: Changing UIView on orientation change
body: <p>Hey all. I have a fairly simple question. I am developing a "rich" iPad app, and I have two background images specifically designed for landscape and portrait. I'd like this ImageView to automatically change depending on the devices orientation. (like pretty much all of Apples iPad apps). </p>
  
  <p>Can anyone point me in the right direction? I'm assuming it would be something I do on viewDidLoad..</p>