/**
  * Generates the sitemap for the given root page
  *
  * @param SiteTree $page Page to get map for
  * 
  * @return string
  * 
  * @author Sebastian Diel <*****@*****.**>
  * @since 25.04.2012
  */
 public function generateSiteMap($page)
 {
     $page->SiteMapChildren = '';
     if ($page->Children()->count() > 0) {
         foreach ($page->Children() as $child) {
             if ($child->ShowInMenus) {
             }
             $child->SiteMapChildren .= $this->generateSiteMap($child);
         }
     }
     $output = $page->renderWith('SilvercartSiteMapLevel');
     return $output;
 }