custom_footer.html

<!-- HTML footer for doxygen 1.8.6-->
<!-- start footer part -->
<!--BEGIN GENERATE_TREEVIEW-->
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
  <ul>
    $navpath
    <li class="footer">$generatedby
    <a href="http://www.doxygen.org/index.html">
    <img class="footer" src="$relpath^doxygen.png" alt="doxygen"/></a> $doxygenversion </li>
  </ul>
</div>
<!--END GENERATE_TREEVIEW-->
<!--BEGIN !GENERATE_TREEVIEW-->
<hr class="footer"/><address class="footer"><small>
$generatedby &#160;<a href="http://www.doxygen.org/index.html">
<img class="footer" src="$relpath^doxygen.png" alt="doxygen"/>
</a> $doxygenversion
</small></address>
<!--END !GENERATE_TREEVIEW-->
<script>
  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');

  ga('create', '[EDIT:your Google Analytics tracking code]', 'auto');
  ga('send', 'pageview');

</script>
</body>
</html>