{% load i18n %}
        <button {% if field_class %}class="{{ field_class }}"{% endif %} {{ flat_attrs|safe }}>
            {% if selected_corpus %}
                {{ selected_corpus }}
            {% else %}
                {% trans "Wybierz korpus" %}
            {% endif %}
            <span class="caret"></span>
        </button>
        <ul class="dropdown-menu" aria-labelledby="dropdownMenu1">
            {% for corpus in corpora %}
            {% ifequal corpus.id selected_corpus %}
            <li class="selected">
                {% else %}
            <li>
                {% endifequal %}
                <a href="{% url 'select_corpus' corpus.id %}">{{ corpus.desc }}</a>
            </li>
            {% endfor %}
        </ul>