Adding a TabBar

-(void)AddTabBar
{
    tabBarController=[[UITabBarController alloc] init];
    UIViewController *ViewController = [[UIViewController alloc] init];
    UINavigationController *PlaceOrderController = [[UINavigationController alloc] initWithRootViewController:PlaceOrderView];
    PlaceOrderController.navigationBar.tintColor = [UIColor redColor];//[UIColor colorWithRed:29.123 green:16.234 blue:2.9 alpha:1.0];
    PlaceOrderController.tabBarItem.title = @"";
    PlaceOrderController.tabBarItem.image = [UIImage imageNamed:@"tab_place_order.png"];
    [PlaceOrderView release];
   
     
    [tabBarController setViewControllers:[NSArray arrayWithObjects:PlaceOrderController, nil]  animated:NO];
    tabBarController.delegate=self;
    tabBarController.selectedIndex=0;
    [PlaceOrderController release];

    [window addSubview:tabBarController.view];
}