<!-- Navigation -->
<nav class="navbar navbar-default  navbar-fixed-top">
  <div class="container" >
    
    <!-- Brand and toggle get grouped for better mobile display -->
    <div class="navbar-header page-scroll">
      <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
        <span class="sr-only">Toggle navigation</span>
        <span class="icon-bar"/>
        <span class="icon-bar"/>
        <span class="icon-bar"/>
      </button>
      <a class="navbar-brand" href="{{ site.baseurl }}/">KWARC</a>
    </div>

{% assign url_parts = page.url | split: '/' %}
{% assign url_parts_size = url_parts | size %}
{% assign base_url = url_parts | last %}
{% assign sorted_pages = site.pages | sort:"menu_order" %}

  <!-- Collect the nav links, forms, and other content for toggling -->
  <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
    <ul class="nav navbar-nav navbar-left">
      {% for node in site.menu %}
      <li class="dropdown" >
        <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">{{ node.title }}<span class="caret"></span></a>
        <ul class="dropdown-menu" >
          {% for sub in sorted_pages %}
	  
          {% assign sub_parts = sub.url | split: '/' %}
          {% assign sub_url = sub_parts | last %}
          {% assign sub_folder = sub_parts[1] %}
          {% if sub_folder == node.folder %}
          <li {% if sub_url == base_url %} class="active" {% endif %}>
	    <a href="{{ sub.url }}">
	      {% if sub.menu_title %}
	      {{ sub.menu_title }}
	      {% else %}
	      {{ sub.title }}
	      {% endif %}
	    </a>
	  </li>
          {% endif %}
          {% endfor %}
        </ul>
      </li>
      {% endfor %}
      <li><a href="{{ site.baseurl }}/news/">News</a></li>
    </ul>
    <ul class="nav navbar-nav navbar-right" >
      <li><a href="#contact">Contact</a></li>
      <li>
        <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Quick links<span class="caret"></span></a>
        <ul class="dropdown-menu" >
          <li><a href="{{ site.github.zip_url | replace: 'zipball','edit' }}/{% if page.source %}{{ page.source }}{% else %}{{ page.path }}{% endif %}" >Edit this page</a></li>
          <li><a href="https://gl.kwarc.info/kwarc/website/#repository-holding-the-sources-of-the-KWARC.info-website">How to edit</a></li>
        </ul>
      </li>
    </ul>
  </div>
  </div>
</nav>