menu.html

{% if include.level == null %}
	{% assign menu_level = 0 %}
{% else %}
	{% capture menu_level %}{{ include.level | plus:1 }}{% endcapture %}
{% endif %}
{% if include.max_depth == null %}
	{% assign max_depth = -1 %}
{% else %}
	{% assign max_depth = include.max_depth %}
{% endif %}
	{% assign level_diff = menu_level | minus: max_depth %}
<ul class="menu-level-{{ menu_level }}">
	{% for menu_page in include.menu %}
    	<li class="{% if page.url == menu_page.url %}{{ site.menu_generator.css.current }}{% endif %}{% if menu_page.menu.suburls contains page.url %}{{ site.menu_generator.css.current_parent }}{% endif %}">
            <a href="{{ menu_page.url }}">{{ menu_page.menu.name }}</a>
            {% assign subpage_count = menu_page.menu.subpages | size %}

            {% unless 0 == subpage_count or level_diff == 0 %}
            	{% include menu.html menu=menu_page.menu.subpages current_url=page.url level=menu_level max_depth=max_depth %}
                {% assign menu_level = menu_level | minus: 1 %}
                {% assign level_diff = menu_level | minus: max_depth %}
            {% endunless %}
    	</li>
    {% endfor %}
</ul>