anchor.diff:    <% if defined? @presenter.file_set_coins_title %>
       <span class="Z3988" title="<%= @presenter.file_set_coins_title %>"></span>
     <% end %>
  -
  +  <div class="skip"></div>
     <div id="epub" class="<%= @subdomain %>">
       <div id="reader"></div>
   
  
positive.code:         }).addTo(reader);
  
          // Table of contents widget
          cozy.control.contents({ region: 'top.toolbar.left' }).addTo(reader);
  
          // Webgl/3-D model
          <% if @monograph_presenter.webgl? %>
  
negative.code:         //$("body").addClass("reading");
          var reader = cozy.reader('reader', {
            href: "<%= "#{main_app.epub_url.gsub!(/\?.*/, '')}/" %>",
            skipLink: '.skip',
            useArchive: <%= @use_archive %>,
            download_links: <%= @epub_download_presenter.download_links.to_json.html_safe %>,
            loader_template: '<div class="fulcrum-loading"><div class="rect rect1"></div><div class="circle circ1"></div><div class="rect rect2"></div><div class="circle circ2"></div></div>',
  