{% load libextras %}
<div class="btn-toolbar {{ extraclasses }}">{% for entry in entries %}
  <div class="btn-group">{% if entry.menu %}
    <a class="btn dropdown-toggle" data-toggle="dropdown">{{ entry.label }}<span class="caret"></span></a>  
    <ul class="dropdown-menu">{% for sentry in entry.menu %}
      <li>{% render_link sentry %}</li>
      {% endfor %}</ul>
    {% else %}{% render_link entry "btn" %}{% endif %}
  </div>
{% endfor %}{{ extracontent }}</div>