[%-# changes button
   # nav             - cache navigator object
   # docset_rel_root - relative docs path
    changes_id = nav.index_node.extra.changes;

    IF changes_id && changes_id != nav.id;

        changes_nav = nav.by_id(changes_id);
-%]
<a href="[% docset_rel_root %]/[% changes_nav.meta.link %]"><img src="[%- doc.dir.abs_doc_root -%]/images/nav/page_changes.gif" width="60" height="16" border="0" alt="Changes file"></a>
<br><br>
[%  END -%]