/**
 * Created By: Maik LUSTENBERGER, Divio GmbH
 *
 * provides language switch for django-i18n
 * requires following form html:
 *
 *  <form id="language_chooser" action="/i18n/setlang/" method="post" style="display: none;">
 *      <fieldset>
 *          <input type="hidden" id="language_value" name="language" value=""/>
 *      </fieldset>
 *  </form>
 *
 */

    function setLanguage(lang) {
        document.getElementById('language_value').value = lang;
        var form = document.getElementById('language_chooser');
        form.action = form.action + '?language=' + lang;
        form.submit();
    }