Shortcode to add menu

menu-shortcode.php

// Function that will return our Wordpress menu
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");