Personalizzare il main menu

Inserire questo cosice nel file template.php del proprio tema.

<ul class="navigation clearfix">
   <li><a href="/" class="active">Home</a></li>
   <li class="dropdown"><a href="/about" title="">About</a>
      <ul>
         <li class="dropdown">Page 1
            <ul>
               <li>Sub Page 1.1</li>
               <li>Sub Page 1.2</li>
               <li>Sub Page 1.3</li>
               <li>Sub Page 1.4</li>
            </ul>
         </li>
      </ul>
    </li>
</ul>


/**
* Implements theme_menu_tree().
*/
function arcadia_menu_tree__main_menu($variables) {
  return '<ul class="navigation clearfix">' . $variables['tree'] . '</ul>';
}

function arcadia_menu_link(array $variables) {
  $element = $variables['element'];
  $sub_menu = '';

  $element['#attributes']['class'][] = 'menu-' . $element['#original_link']['mlid'];

  if ($element['#below']) {
      unset($element['#below']['#theme_wrappers']);
      $sub_menu = '<ul>' . drupal_render($element['#below']) . '</ul>';
      // $sub_menu = drupal_render($element['#below']);
  }
  $output = l($element['#title'], $element['#href'], $element['#localized_options']);

  if ($sub_menu!='') {
      return '<li class="dropdown">' . $output . $sub_menu . "</li>\n";
  } else {
      return '<li>' . $output . $sub_menu . "</li>\n";
  }
}