function checkFields(form) {
    try {
        var lang = Cookie.get('lang');
        var required = [ 'vorname', 'nachname', 'firma', 'str', 'stadt', 'plz', 'land', 'email', 'telefon'  ];
        var ok = FormUtils.checkEmptyFields(required, 'error_msg');
        if(!ok) return false;
        form.submit();
    } catch(e) {
        return false;
    }
    return false;
}