let nav = self.navigationController?.navigationBar

        let imageView = UIImageView(frame: CGRect(x: 0, y: 0, width: self.view.frame.width, height: (nav?.frame.height)!-20))
        imageView.contentMode = .scaleAspectFit

        let image = UIImage(named: "logo_genentech-1")
        imageView.image = image

        navigationItem.titleView = imageView
        navigationItem.rightBarButtonItem = UIBarButtonItem(title: "", style: UIBarButtonItemStyle.plain, target: self, action: nil)