var cell_2 = row.insertCell(1);
        var el = document.createElement('select');
        el.setAttribute('lenght', '2');
        el.setAttribute('name', 'thema_aktion' + rowNum);
        el.setAttribute('id', 'row_name_id' + rowNum);
        el.setAttribute('size', '1');
        var status = new Array("A", "I");
        for (var i = 0; i < status.length; i++){
                var opt = new Option(status[i], status[i]);
                el.options[el.length] = opt;
        }
        cell_2.appendChild(el);