HTML/PHP for menu

gistfile1.txt

<div class="navbar">
        <div class="navbar-inner">
        <div class="container">
          <a class="brand" href="<?php echo home_url( '/' ); ?>"><?php bloginfo('name'); ?></a>
          <?php
           /** Loading WordPress Custom Menu with Fallback to wp_list_pages **/
      wp_nav_menu( array( 'menu' => 'main-menu', 'container_class' => 'nav-collapse', 'menu_class' => 'nav', 'menu_id' => 'main-menu') ); ?>
        </div>
      </div><!-- /navbar-inner -->
  </div> <!-- end of .navbar -->