{% load url from future %}
<form action="." method="get" id="forum-query-form">
   <select id="forum-query-select">
      <option value="{% url 'forums-unread_topics' %}">Show topics with unread posts</option>
      <option value="{% url 'forums-unanswered_topics' %}">Show unanswered topics</option>
      {% if user.is_authenticated %}
      <option value="{% url 'forums-my_posts' %}">Show my posts</option>
      <option value="{% url 'forums-manage_favorites' %}">Show my favorite topics</option>
      <option value="{% url 'forums-manage_subscriptions' %}">Show my subscribed topics</option>
      {% endif %}
   </select>
   <button type="button" id="forum-query-button">Go</button>
</form>