Using Individual Menus on Pages

I recently had to completely rework my website after upgrading to 3.0 and decided to just buy a pretty good theme to save time and use that as a basis. The theme has built-in menu support in the header, so that’s not an issue. The issue is that I used to use a #navcontainer function to create attractive sub-menus on each page, and that this no longer functions.

So I would like to figure out how to create a series of menus for each page in addition to the main nav menu. I.e., this page (www.labhaus.com/models) would ideally have a secondary menu below the banner instead of the (malfunctioning) navcontainer that basically just reads as hyperlinks right now. I would basically like to be abel to create about 15 menus in addition to the nav menu and be able to insert the appropriate menus into the appropriate page to help link parts of the site together.

Is this even possible? Or am I misunderstanding the way menus function?

The appropriate code in the functions.php currently only allows for one menu. When I modify it, it crashes the entire website. The current code reads:

if ( function_exists( ‘add_theme_support’ ) ) {
add_theme_support( ‘nav-menus’ );
add_action( ‘init’, ‘fullscreen_register_menus’ );

function fullscreen_register_menus() {
register_nav_menus(
array(
‘main-menu’ => __( ‘Main Menu’ )
)
);
}
}

THANKS!!!

I have plaid