how to enable custom navigation menu features on iNove theme theme

My code is pretty bad , due to my limited php skill, but if you want to improve it …

In the functions.php file:

function mAsseur_addmenus() {
	register_nav_menus(
		array(
			'primary' => 'The Main Menu',
		)
	);
}

add_action( 'init', 'mAsseur_addmenus' );

function mAsseur_nav() {
    if ( function_exists( 'wp_nav_menu' ) )
        wp_nav_menu( 'menu=primary&container_class=pagemenu&container=false&menu_id=menus&fallback_cb=mAsseur_nav_fallback' );
    else
        mAsseur_nav_fallback();
}

function mAsseur_nav_fallback() {
    wp_page_menu( 'show_home=Start&menu_class=pagemenu' );
}

add_filter( 'wp_nav_menu_items', 'your_custom_menu_item', 10, 2 );
function your_custom_menu_item ( $items, $args ) {

       $items = '<li class="'.$home_menu.'"><a class="home" href="'. get_settings('home').'" title="Accueil">Accueil</a></li>'.$items;
       $items .= '<li><a class="lastmenu" href="javascript:void(0);"></a></li>';
    return $items;
}

in template/header.php
the content of the menu is now :

<!-- menus START -->
<?php mAsseur_nav(); ?>
	<!-- menus END -->