menu_no_access_check.php

<?php

function menu_render_no_access_checks($menu_name) {
  $menu = _menu_build_tree($menu_name, array('max_depth' => 1));

  // Copy/paste from menu_navigation_links
  foreach ($menu['tree'] as $item) {
    if (!$item['link']['hidden']) {
      $class = '';
      $l = $item['link']['localized_options'];
      $l['href'] = $item['link']['href'];
      $l['title'] = $item['link']['title'];
      if ($item['link']['in_active_trail']) {
        $class = ' active-trail';
        $l['attributes']['class'][] = 'active-trail';
      }
      // Normally, l() compares the href of every link with $_GET['q'] and sets
      // the active class accordingly. But local tasks do not appear in menu
      // trees, so if the current path is a local task, and this link is its
      // tab root, then we have to set the class manually.
      if ($item['link']['href'] == $router_item['tab_root_href'] && $item['link']['href'] != $_GET['q']) {
        $l['attributes']['class'][] = 'active';
      }
      // Keyed with the unique mlid to generate classes in theme_links().
      $links['menu-' . $item['link']['mlid'] . $class] = $l;
    }
  }

  return theme('links', array('links' => $links));
}

print menu_render_no_access_checks('user-menu');