<% @sub_categories.each do |sub_cat| %>
      <div class="circle">
        <header>
          <h3 data-toggle="collapse" href="#<%= dom_id(sub_cat) %>-collapse"><%=sub_cat.name %></h3>
          <ul id="<%= dom_id(sub_cat) %>-collapse" class="accordion-body collapse">
            <li class="list-shadow"></li>

            <% @circles.each do |circle| %>
              <% if circle.category_id == sub_cat.id %>
                <li><%= link_to circle.title, circle, :remote => true, :method => 'get' %></li>
              <% end %>
            <% end %>

          </ul>
        </header>
      </div><!--.circle-->
    <% end %>