refactoring

customfooter.html
View Options

			<!-- HTML footer for doxygen 1.8.11-->
			<!-- 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 on $date</li>
			</ul>
			</div>
			<!--END GENERATE_TREEVIEW-->
			<!--BEGIN !GENERATE_TREEVIEW-->
			<hr class="footer"/><address class="footer"><small>
			$generatedby  <a href="http://www.doxygen.org/index.html">
			<img class="footer" src="$relpath^doxygen.png" alt="doxygen"/>
			</a> $doxygenversion
			</small></address>
			<!--END !GENERATE_TREEVIEW-->
			</body>
			</html>