_subnavigation.html.erb

<%- collection ||= @menu_pages
# In order to match items that aren't shown in menu and highlight their associations.
# This can be supplied if the logic different in your case.
unless defined?(selected_item)
  selected_item = collection.detect{|page| selected_page?(page)}
  selected_item = @page if selected_item.nil?
end

   if defined?(selected_item) %>

    <%- if page_section_id == 'stoneybrook'  %>
      <%-
        if @page.nested_url.length > 2
          submenu_items = selected_item.parent.children
        elsif @page.nested_url.length == 2 && !selected_item.children.blank?
          submenu_items = selected_item.children
        end
      %>

      <% if submenu_items %>
            <ul class="subnav">
              <% submenu_items.each do |item| %>
                <li><a href="#<%= item.cached_slug %>"><%= item.title %></a></li>
              <% end %>
            </ul>

              <% submenu_items.each do |item| %>
                <div class="subsection">
                  <h1><a name="<%= item.cached_slug %>"></a><%= item.title %></h1>
                  <%= item['Body'].html_safe %>
                  <a class="backtop" href="#top">Back to top</a>
                </div>
              <% end %>

      <% end %>

    <% end %>

  <% end %>