/**
  * Affiche le fil d'Ariane d'une page.
  * 
  * @param string $html HTML
  * @return string HTML
  */
 public function filAriane(Page $page)
 {
     $filArianeHtml = '<strong class="current">' . $page->getTitle() . '</strong>';
     $pageParente = $page->getParent();
     while (null !== $pageParente && $pageParente instanceof Page) {
         $filArianeHtml = '<a href="' . $pageParente->getPath() . '">' . $pageParente->getTitle() . '</a> ' . $filArianeHtml;
         $pageParente = $pageParente->getParent();
     }
     return $filArianeHtml;
 }