Custom UINavigation background

CCustomNavigationBar.h

//
//  CCustomNavigationBar.h
//
//  Created by Tom Mulder on 05-12-11.
//  Copyright (c) 2011 Reed Business. All rights reserved.
//


#define kCCNavBarImageTag 6183747

@interface CCustomNavigationBar : UINavigationController

@end

CCustomNavigationBar.m

//
//  CCustomNavigationBar.m
//
//  Created by Tom Mulder on 05-12-11.
//  Copyright (c) 2011 Reed Business. All rights reserved.
//

#import "CCustomNavigationBar.h"

@implementation CCustomNavigationBar

- (id)init
{
    if ((self = [super init])) 
    {
        [self.navigationBar setTintColor:[UIColor colorWithRed:231.0/255.0 green:87.0/255.0 blue:65.0/255.0 alpha:1.0]];
        
        
        if ([self.navigationBar respondsToSelector:@selector(setBackgroundImage:forBarMetrics:)])
        {            
            [self.navigationBar setBackgroundImage:[UIImage imageNamed:@"NavigationBar"] forBarMetrics:UIBarMetricsDefault];
        }
        else
        {
            UIImageView *imageView = (UIImageView *)[self.navigationBar viewWithTag:kCCNavBarImageTag];
            if (imageView == nil)
            {
                imageView = [[UIImageView alloc] initWithImage:
                             [UIImage imageNamed:@"NavigationBar"]];
                [imageView setTag:kCCNavBarImageTag];
                [imageView setFrame:CGRectMake(0, 0, 
                                               self.navigationBar.frame.size.width, self.navigationBar.frame.size.height)];
                [self.navigationBar insertSubview:imageView atIndex:0];
                [imageView release];
            }
            
        }
         
    }
    return self;
}

- (UIModalPresentationStyle)modalPresentationStyle 
{
    if ([self topViewController]) 
    {
        return [[self topViewController] modalPresentationStyle];
    } 
    else 
    {
        return [super modalPresentationStyle];
    }
}

- (void)updateNavBarBackground
{
    [[self.navigationBar viewWithTag:kCCNavBarImageTag] setFrame:CGRectMake(0, 0, 
                                   self.navigationBar.frame.size.width, self.navigationBar.frame.size.height)];
}

- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation 
{
    [self updateNavBarBackground];
}

@end