<button type="button" class="btn btn-info btn-lg" data-toggle="modal" data-target="#'.$action.$rownum.'">Вернуть</button>
            <div id="'.$action.$rownum.'" class="modal fade" role="dialog">
                <div class="modal-dialog">
                    <!-- Modal content-->
                    <div class="modal-content">
                        <div class="modal-header">
                            <button type="button" class="close" data-dismiss="modal">&times;</button>
                            <h4 class="modal-title">Оценка задания</h4>
                        </div>
                        <div class="modal-body">
                            <p>Напишите причину и верните работу студену на доработку.</p>
                                <label for="comment">Отзыв:</label><br>
                                <textarea name="assignfeedbackcomments_editor[text]" rows="5" id="FB'.$action.$rownum.'"></textarea><br>
                                <button type="button" id="back'.$action.$rownum.'">Вернуть</button>
                        </div>
                        <div class="modal-footer">
                            <button type="button" class="btn btn-default" data-dismiss="modal">Отмена</button>
                        </div>
                    </div>
                </div>
            </div>';