Adding a secondary horizontal menu

Hi

I am looking a way to add a horizontal secondary menu in my theme. I have tried adding

add_action( 'init', 'register_secondary_menu' );
function register_secondary_menu() {
    if ( function_exists( 'register_nav_menu' ) ) {
        register_nav_menu( 'secondary-menu', 'Secondary Menu' );
    }
}

add_action('__header', 'display_secondary_menu', 1000, 0);
function display_secondary_menu() {
	echo ( has_nav_menu( 'secondary-menu' ) ? wp_nav_menu (
        array (
            'theme_location' => 'secondary-menu',
			'container_id'    => 'secondary-menu',
			'container_class'    => 'secondary-menu'
        )
    ).'<div class="clearall"></div>' : '' );
}

in my child theme. This has created a new menu location. But when I assign some menu to that location it is still not displayed.

I am using twentyFourteen theme on a localhost PC