wp enqueue

add_action( 'init', 'child_manage_styles', 99 );
function child_manage_styles() {

    wp_dequeue_style( 'twentytwelve-fonts',true);
    wp_dequeue_script( 'twentytwelve-navigation',true);
}

add_action('init','littlebee_scripts',10);
function littlebee_scripts(){
        wp_deregister_style( 'twentytwelve-fonts',true);
        wp_deregister_script( 'twentytwelve-navigation',true);
        if( has_nav_menu( 'topmenu' ) ) :
            wp_enqueue_script( 'twentytwelve-topnavigation', get_stylesheet_directory_uri() . '/js/topnav.js', '2',false );
        endif;

        if( has_nav_menu( 'topprimary' ) ) :
            wp_enqueue_script( 'twentytwelve-topprimary', get_stylesheet_directory_uri() . '/js/navigation.js', '2',false );
        endif;

        if( has_nav_menu( 'primary' ) ) :
        wp_register_script( 'littlebee-navigation', get_template_directory_uri() . '/js/navigation.js', '2.0', false );
            wp_enqueue_script( 'littlebee-navigation' );
        endif;

        wp_register_script( 'shortcode', get_stylesheet_directory_uri() . '/js/app.js', '2.3', false );
        wp_enqueue_script( 'shortcode');


}