Plugging in custom menu into template file

Hi there,

I’m wonder if there is a way to change which menu is used for a page template.

Right now, my header.php file has this code:

<nav>
                    	<?php wp_nav_menu( array('theme_location' => 'main_menu', 'menu_class' => 'menu'));?>
                    </nav>

This is the default menu and was wondering if I could create a custom menu and change this code to reflect a custom menu.

Thanks!