<%= tag.div id: dom_id(record) do %>
  <%= toggle_trigger_tag renders: current_partial_path, morphs: dom_id(record), 
    controls: dom_id(record, :example), locals: local_assigns do %>
    <%= toggle_busy_tag do %>
    Loading.... (only shown when busy)
    <% end %>
    <a>Toggle the Target</a>
  <% end %>

  <%= toggle_target_tag dom_id(record, :example) do %>
    This block is only executed if the target is "expanded."

    Toggled content...    
    <%= render "path/to/toggled/content" %>

    <%= toggle_busy_tag do %>
      Loading.... (only shown when busy if the target is expanded)
    <% end %>
  <% end %>
<% end %>