title: Refer to the navigation item above the current navigation item in the hiearchy
body: <p>I have a navigation item, and when you click a button on that navigation item the navigation controller will pop. This is good but i want to send a message to the navigation item that is above this one in the hierachy before it pops.</p>
  
  <p>Is there anyway to do that?</p>
  
  <p>Thanks</p>