To Show A View Controller Modally


        #ViewController_iPhone *vc1 = [[#ViewController_iPhone alloc] init];
        [self presentModalViewController:vc1 animated:YES];
        //[ptabBarController presentModalViewController:vc1 animated:YES];   //An alternative
	[vc1 release];

To Close It


	//Close this view
	[self dismissViewControllerAnimated:YES completion:nil];

Notes

Use popViewControllerAnimated when you've used pushViewController:animated:

Use dismissModalViewControllerAnimated when you've used presentModalViewController:animated: