<div class="docs-nav-mobile unit whole show-on-mobiles">
  <select onchange="if (this.value) window.location.href=this.value">
    <option value="">Navigate the docs…</option>
    <optgroup label="Getting started">
      {% include docs_option.html items='home quickstart installation usage' %}
    </optgroup>
    <optgroup label="Tutorials">
      {% include docs_option.html items='functions messages ios android' %}
    </optgroup>
    <optgroup label="API Reference">
      {% include docs_option.html items='javascript-api' %}
    </optgroup>
    <optgroup label="Miscellaneous">
      {% include docs_option.html items='troubleshooting building' %}
    </optgroup>
    <optgroup label="Meta">
      {% include docs_option.html items='contributing gsoc-ideas-2015 history' %}
    </optgroup>
  </select>
</div>

<div class="docs-nav-mobile unit whole show-on-mobiles">
  <select onchange="if (this.value) window.location.href=this.value">
    <option value="">Navigate the docs…</option>
    <optgroup label="Getting started">
      {% include docs_option.html items='home quickstart installation usage presentations' %}
    </optgroup>
    <optgroup label="Tutorials">
      {% include docs_option.html items='functions messages ios android' %}
    </optgroup>
    <optgroup label="API Reference">
      {% include docs_option.html items='javascript-api' %}
    </optgroup>
    <optgroup label="Miscellaneous">
      {% include docs_option.html items='troubleshooting building' %}
    </optgroup>
    <optgroup label="Meta">
      {% include docs_option.html items='contributing gsoc-ideas-2015 history' %}
    </optgroup>
  </select>
</div>

Add presentations to the mobile version as well
Add presentations to the mobile version as well
