if(self.cameraViewController == nil)
{
    	CollageCameraViewController *camView = [[CollageCameraViewController alloc] init];//WithNibName:nil bundle:[NSBundle mainBundle]];
    	self.cameraViewController = camView;
    	[camView release];

}
[self.navigationController pushViewController:self.cameraViewController animated:NO];

if(self.renderView == nil)
{
	CollageRenderViewController *renderViewController = [[CollageRenderViewController alloc] initWithNibName:nil bundle:[NSBundle mainBundle]];
	self.renderView = renderViewController;
	[renderViewController release];
}
[self.navigationController pushViewController:self.renderView animated:YES];

[self.navigationController popToRootViewControllerAnimated:YES];

@class SecondViewController;

@interface RootViewController : UIViewController {
    SecondViewController *secondViewController;
}

@property (nonatomic, retain) SecondViewController *secondViewController;

- (IBAction)pushSecondVC;

@end

#import "RootViewController.h"
#import "SecondViewController.h"

@implementation RootViewController

@synthesize secondViewController;

- (IBAction)pushSecondVC {
    if(self.secondViewController == nil)
    {
        SecondViewController *secondVC = [[SecondViewController alloc] init];
        self.secondViewController = secondVC;
        [secondVC release];
    }
    [self.navigationController pushViewController:self.secondViewController animated:NO];
}

- (void)viewDidLoad {
    [super viewDidLoad];

    self.title = @"Root View";
}

#import <UIKit/UIKit.h>

@class ThirdViewController;

@interface SecondViewController : UIViewController {
    ThirdViewController *thirdViewController;
}

@property (nonatomic, retain) ThirdViewController *thirdViewController;

- (IBAction)pushThirdVC;

@end

#import "SecondViewController.h"
#import "ThirdViewController.h"

@implementation SecondViewController

@synthesize thirdViewController;

- (IBAction)pushThirdVC {
    if(self.thirdViewController == nil)
    {
        ThirdViewController *thirdVC = [[ThirdViewController alloc] initWithNibName:nil bundle:[NSBundle mainBundle]];
        self.thirdViewController = thirdVC;
        [thirdVC release];
    }
    [self.navigationController pushViewController:self.thirdViewController animated:YES];
}

- (void)viewDidLoad {
    [super viewDidLoad];

    self.title = @"2nd View";
}

#import <UIKit/UIKit.h>

@interface ThirdViewController : UIViewController {
}

- (IBAction)popToRoot;

@end

#import "ThirdViewController.h"

@implementation ThirdViewController

- (IBAction)popToRoot {
    [self.navigationController popToRootViewControllerAnimated:YES];
}

- (void)viewDidLoad {
    [super viewDidLoad];

    self.title = @"3rd View";
}