Custom menu w dropdown

I have added a custom menu to my header: by adding this in my theme functions file: add_theme_support( ‘menus’ );

I then add this code in my header:

<?php wp_nav_menu( array(‘menu’ => ‘navigation’,)); ?>

Great the right menu shows up. However I can’t get it to show the subpages/categories that I have in my custom menu. I know I need to do something with depth=1 but I just can’t figure out how to get it to work.

I had: <?php wp_nav_menu( array(‘menu’ => ‘navigation’, ‘depth’=>’1’ )); ?>

but that doesn’t work.

anyone knows hoew to do this?

Thanks