{% comment %}
  Navigation bar for an episode.
{% endcomment %}
<div class="row">
  <div class="col-md-1">
    <h3>
      {% if page.previous.url %}
      <a href="{{ page.root }}{{ page.previous.url }}"><span class="glyphicon glyphicon-menu-left" aria-hidden="true"></span><span class="sr-only">previous episode</span></a>
      {% else %}
      <a href="{{ page.root }}/"><span class="glyphicon glyphicon-menu-up" aria-hidden="true"></span><span class="sr-only">lesson home</span></a>
      {% endif %}
    </h3>
  </div>
  <div class="col-md-10">
    {% if include.episode_navbar_title %}
    <h3 class="maintitle"><a href="{{ page.root }}/">{{ site.title }}</a></h3>
    <h1 class="maintitle">{{ page.title }}</h1>
    {% endif %}
  </div>
  <div class="col-md-1">
    <h3>
      {% if page.next.url %}
      <a href="{{ page.root }}{{ page.next.url }}"><span class="glyphicon glyphicon-menu-right" aria-hidden="true"></span><span class="sr-only">next episode</span></a>
      {% else %}
      <a href="{{ page.root }}/"><span class="glyphicon glyphicon-menu-up" aria-hidden="true"></span><span class="sr-only">lesson home</span></a>
      {% endif %}
    </h3>
  </div>
</div>