Create short code for menu items with arguments like wp_nav_menu and allow short codes to be added to widgets

Shortcode for adding menu items with custom arguments and

// Function that will return our Wordpress menu
// from http://www.cozmoslabs.com/1170-wp_nav_menu-shortcode/
function list_menu($atts, $content = null) {
    extract(shortcode_atts(array(  
        'menu'            => '', 
        'container'       => 'div', 
        'container_class' => '', 
        'container_id'    => '', 
        'menu_class'      => 'menu', 
        'menu_id'         => '',
        'echo'            => true,
        'fallback_cb'     => 'wp_page_menu',
        'before'          => '',
        'after'           => '',
        'link_before'     => '',
        'link_after'      => '',
        'depth'           => 0,
        'walker'          => '',
        'theme_location'  => ''), 
        $atts));
 
 
    return wp_nav_menu( array( 
        'menu'            => $menu, 
        'container'       => $container, 
        'container_class' => $container_class, 
        'container_id'    => $container_id, 
        'menu_class'      => $menu_class, 
        'menu_id'         => $menu_id,
        'echo'            => false,
        'fallback_cb'     => $fallback_cb,
        'before'          => $before,
        'after'           => $after,
        'link_before'     => $link_before,
        'link_after'      => $link_after,
        'depth'           => $depth,
        'walker'          => $walker,
        'theme_location'  => $theme_location));
}
//Create the shortcode
add_shortcode("listmenu", "list_menu");

// do short codes in widgets
add_filter('widget_text', 'do_shortcode');