<tal:navigation define="portal_url view/portal_url"
                i18n:domain="plone">
    <link rel="home"
          href=""
          title="Front page"
          i18n:attributes="title title_frontpage"
          tal:attributes="href string:$portal_url" />

    <link rel="contents"
          href=""
          title="Site Map"
          i18n:attributes="title title_sitemap"
          tal:attributes="href string:$portal_url/sitemap" />
</tal:navigation>