ช่วยด้วยจ้า เกี่ยวกับคอมโบบ็อก 2 อัน ดึงมาแสดงจากฐานค่ะ

 <form name="form2" method="post" action="">
        <table width="425" border="1" align="center" cellpadding="0" cellspacing="0" bordercolor="#000000">
          <tr>
            <td height="24" align="right" valign="middle"><span class="style3">ชื่ออาจารย์</span></td>
            <td valign="top"><p>
              <label>
              <select name="per_name" id="per_name">
       <?php  
	include(".../dbconnect.php");
    $sql="select * from personnel ";  
    $qr=mysql_query($sql);  
    while($rs=mysql_fetch_array($qr)){  
?>
                <option value="<?=$rs['per_id']?>" selected >
                  <?=$rs['per_name']?>
                </option>
                <?php } ?>
              </select>
              </label>
            </p></td>
          </tr>
          <tr>
            <td height="24" align="right" valign="middle"><span class="style3">ตำแหน่ง</span></td>
            <td valign="top"><label>
            <select name="position_name" disabled id="position_name">
                <?php  
	include(".../dbconnect.php");
    $sql="select * from position";  
    $qr=mysql_query($sql);  
    while($rs=mysql_fetch_array($qr)){  
?>
              <option value="<?=$rs['position_id']?>" selected >
                  <?=$rs['position_name']?>
                </option>
                <?php } ?>
              </select>
            </select>
            </label></td>
          </tr>
          <tr>
            <td width="219" align="right" valign="middle"><span class="style3 style3">ลำดับอนุมัติแลกชั่วโมงสอน</span></td>
            <td width="200" valign="middle"><select name="changeteachid" id="changeteachid">
                <option value="1" selected>1</option>
                <option value="2">2</option>
                <option value="3">3</option>
                <option value="4">4</option>
                <option value="5">5</option>
                <option value="6">6</option>
                <option value="7">7</option>
                <option value="8">8</option>
                <option value="9">9</option>
                        </select></td>
          </tr>

          <tr>
            <td height="26" colspan="2" align="center" valign="top"><input type="submit" name="add" id="add" value="บันทึก">
                <input type="reset" name="cancel" id="cancel" value="ยกเลิก"></td>
          </tr>
        </table>
      </form>