{% load admin_urls %}

<div>
  <div data-url="{% url opts|admin_urlname:'send_test' %}"
       data-template="{{ original.name }}"
       id="send_test_mail">send test</div>
  <div id="send_test_preloader" style="display: none"></div>
</div>

{% if variables|length %}
  <h2>Variables:</h2>
  <table>
    <tbody>
      {% for var in variables %}
        <tr>
          <th>{{ var.name }}</th>
          <td>{{ var.value }}</td>
          <td class="variable_value" data-variable="{{ var.name }}"></td>
        </tr>
      {% endfor %}
    </tbody>
  </table>
{% endif %}

<div id="preview_container">
  <div id="preview_background"></div>
  <div data-url="{% url opts|admin_urlname:'preview' %}"
       data-template="{{ original.name }}"
       id="preview_btn">
  </div>
</div>