Just add the segue from one view controller to the other (not connected to any specific button), and then give the segue an identifier.
Then, in your code, remove the initWithNibName
, because you don't have a NIB. Instead, use performSegueWithIdentifier:sender:
. You will also likely want to use prepareForSegue:sender:
in order to pass the appropriate URL / HTML information that should be loaded into the second web view.