<ul class="tabnav el">
    <li class="{% if mode == 'index' %}selected{% endif %}">
        <a href="/plugins/BasketBuilder/admin/index.php">
            Manage
        </a>
    </li>
    <li class="{% if mode == 'add' %}selected{% endif %}">
        <a href="/plugins/BasketBuilder/admin/add.php">
            Add
        </a>
    </li>
</ul>