redéfinir le fil d'ariane pour prendre en compte le bon element de menu

gistfile1.php

/*
Définition du Breadcrumb en fonction d'un Node
*/
function _breadcrumb_for_a_node($link_path = NULL){
  
  $breadcrumb = array();
  
  if(!is_null($link_path)){
    $breadcrumb[] = l(t('Home'), '<front>');
  
    $item = menu_tree_set_path('main-menu', $link_path);
    $tree = menu_tree_page_data('main-menu', NULL, TRUE);
    
    list($key, $curr) = each($tree);
    
    while ($curr) {
      $link = $curr['link'];
      if ($link['in_active_trail']) {
        // Add the link to the trail, unless it links to its parent.
        if (!($link['type'] & MENU_LINKS_TO_PARENT)) {
          // The menu tree for the active trail may contain additional links
          // that have not been translated yet, since they contain dynamic
          // argument placeholders (%). Such links are not contained in regular
          // menu trees, and have only been loaded for the additional
          // translation that happens here, so as to be able to display them in
          // the breadcumb for the current page.
          // @see _menu_tree_check_access()
          // @see _menu_link_translate()
          if (strpos($link['href'], '%') !== FALSE) {
            _menu_link_translate($link, TRUE);
          }
          if ($link['access']) {
            $breadcrumb[] = l($link['title'], $link['href'], $link['localized_options']);
          }
        }
        $tree = $curr['below'] ? $curr['below'] : array();
      }
      list($key, $curr) = each($tree);
    }
    
    drupal_set_breadcrumb($breadcrumb);
  }

  return $breadcrumb;

}