anchor.diff:                      <li><a href="#">No thanks, I'd like to know how to claim</a></li>
                     </ul>
                   </nav>
  +								<nav class="return-to-top" role="navigation">
  +									<a href="#top">Return to top &uarr;</a>
  +								</nav>
                 </div>
   					  </article>
   			    <% end %>
  
positive.code: <html lang="en">
  <head>
    <meta charset="utf-8" />
    <title>Programme to <%= programme.title %> - www.gov.uk</title>
    <link rel="stylesheet" type="text/css" href="<%= asset_host %>/stylesheets/publisher.css" />
    <% if programme.overview and programme.overview != '' %>
    <meta name="description" content="<%= programme.overview %>">
  
negative.code: 
  			<nav class="programme-switcher group" role="navigation">
  				<ul>
            <li<%= ' class="active"' if programme.overview %>><a href="<%= programme_path(programme.slug) %>">About and how to claim</a></li>
  					<li<%= ' class="active"' unless programme.overview %>><a href="<%= programme_path(programme.slug, programme.parts.last.slug) %>"><%= programme.parts.last.title %></a></li>
  				</ul>
  			</nav>
  
  			<% unless programme.overview %>
  			  <article role="article" class="group">
            <div class="inner">
              <%= partial(:"_part.html", :part => programme.parts.last) %>
  