ผมต้องการ select ข้อมูลมาใส่ combobox แต่ติดตามรูปเลยครับ

<script src="http://code.jquery.com/jquery-latest.js"></script>
<script type="text/javascript">
    $(document).ready(function () {
        var rows = 1;
        $("#createRows").click(function () {
            var tr = "<tr>";
            tr = tr + "<td><select type='text' name='txtbraind" + rows + "' id='txtbrand" + rows + "'></selecct></td>"
            tr = tr + "<td><input type='text' name='txtproduct" + rows + "' id='txtproduct" + rows + "' ></td>";
            tr = tr + "<td><input type='text' name='txtcolor" + rows + "' id='txtcolor" + rows + "'></td>";
            tr = tr + "<td><select type='text' name='txtwirelength" + rows + "' id='txtwirelength" + rows + "'></selecct></td>";
            tr = tr + "<td><select type='text' name='txtwiretype" + rows + "' id='txtwiretype" + rows + "'></selecct></td>";
            tr = tr + "<td><input type='text' name='txtamount" + rows + "' id='txtamount" + rows + "'></td>";
            tr = tr + "</tr>";
            $('#myTable > tbody:last').append(tr);
            $('#hdnCount').val(rows);
            rows = rows + 1;
        });
        $("#deleteRows").click(function () {
            if ($("#myTable tr").length != 1) {
                $("#myTable tr:last").remove();
            }
        });
        $("#clearRows").click(function () {
            rows = 1;
            $('#hdnCount').val(rows);
            $('#myTable > tbody:last').empty(); // remove all
        });
    });