twenty eleven default headers

// Removes the default headers so we can use our own
function orange_remove_header_images() {
    unregister_default_headers( array('wheel','shore','trolley','pine-cone','chessboard','lanterns','willow','hanoi')
    );
}
add_action( 'after_setup_theme', 'orange_remove_header_images', 11 );


//Add the new resized header images
function orange_new_default_header_images() {
$orange = get_bloginfo('stylesheet_directory'); //childtheme directory, not twentyeleven
    register_default_headers( array (
        'wheel' => array(
            'url' => '$orange/images/headers/wheel.jpg',
            'thumbnail_url' => '$orange/images/headers/wheel-thumbnail.jpg',
            /* translators: header image description */
            'description' => __( 'Wheel', 'twentyeleven' )
        ),
        'shore' => array(
            'url' => '$orange/images/headers/shore.jpg',
            'thumbnail_url' => '$orange/images/headers/shore-thumbnail.jpg',
            /* translators: header image description */
            'description' => __( 'Shore', 'twentyeleven' )
        ),
        'trolley' => array(
            'url' => '$orange/images/headers/trolley.jpg',
            'thumbnail_url' => '$orange/images/headers/trolley-thumbnail.jpg',
            /* translators: header image description */
            'description' => __( 'Trolley', 'twentyeleven' )
        ),
        'pine-cone' => array(
            'url' => '$orange/images/headers/pine-cone.jpg',
            'thumbnail_url' => '$orange/images/headers/pine-cone-thumbnail.jpg',
            /* translators: header image description */
            'description' => __( 'Pine Cone', 'twentyeleven' )
        ),
        'chessboard' => array(
            'url' => '$orange/images/headers/chessboard.jpg',
            'thumbnail_url' => '$orange/images/headers/chessboard-thumbnail.jpg',
            /* translators: header image description */
            'description' => __( 'Chessboard', 'twentyeleven' )
        ),
        'lanterns' => array(
            'url' => '$orange/images/headers/lanterns.jpg',
            'thumbnail_url' => '$orange/images/headers/lanterns-thumbnail.jpg',
            /* translators: header image description */
            'description' => __( 'Lanterns', 'twentyeleven' )
        ),
        'willow' => array(
            'url' => '$orange/images/headers/willow.jpg',
            'thumbnail_url' => '$orange/images/headers/willow-thumbnail.jpg',
            /* translators: header image description */
            'description' => __( 'Willow', 'twentyeleven' )
        ),
        'hanoi' => array(
            'url' => '$orange/images/headers/hanoi.jpg',
            'thumbnail_url' => '$orange/images/headers/hanoi-thumbnail.jpg',
            /* translators: header image description */
            'description' => __( 'Hanoi Plant', 'twentyeleven' )
            )
        ) );
}
add_action( 'after_setup_theme', 'orange_new_default_header_images' );