teagles / ChoiceCastings.com

<ul class="menu vertical">
  {% for page in site.pages %}
    {% if page.slug == slug %}
      <li>
        {% link_to page %}
        {% unless page.children.size == 0 %}
          <ul class="nested vertical menu">
            {% for subpage in page.children %}
              <li>{% link_to subpage %}</li>
            {% endfor %}
          </ul>
        {% endunless %}
      </li>
    {% endif %}
  {% endfor %}
</ul>