{% macro panel(style, title) %}
  <div class="panel panel-{{ style }}">
    <div class="panel-heading">
      <h3 class="panel-title">{{ title }}</h3>
    </div>
    <div class="panel-body">
      {{ caller() }}
    </div>
  </div>
{% endmacro %}

{% macro radio(name, value, emph, text) %}
  <div class="radio">
    <label>
      <input type="radio" name="{{ name }}" value="{{ value }}">
      {% if emph %}
      <strong>{{ emph }}</strong>,
      {% endif %}
      {{ text }}
    </label>
  </div>
{% endmacro %}