swappedInView.frame = detailController.view.bounds;

[detailedController.view addSubview:swappedInView];

if (self.yellowViewController.view.superview == nil)
{
    if (self.yellowViewController == nil)
    {
        YellowViewController *yellowController =
        [[YellowViewController alloc] initWithNibName:@"YellowView"
bundle:nil];
        self.yellowViewController = yellowController;
        [yellowController release];
    }
    [blueViewController.view removeFromSuperview];
    [self.view insertSubview:yellowViewController.view atIndex:0];
}
else
{
    if (self.blueViewController == nil)
    {
        BlueViewController *blueController =
        [[BlueViewController alloc] initWithNibName:@"BlueView"
bundle:nil];
        self.blueViewController = blueController;
        [blueController release];
    }
    [yellowViewController.view removeFromSuperview];
    [self.view insertSubview:blueViewController.view atIndex:0];
}