Someone

<tr><td>

     <form action="delete.php" method="post" enctype="multipart/form-data">

     <select name=macname size=1>

     <option value="" selected>Select MAC</option>

     <?  

     $result = mysql_query ($sql, $connect);

     while($row = mysql_fetch_array($result)) {

     ?>

          <option value="<?echo ("$row[0]");?>"><?echo $row[0];?></option>

     <?

     }?>

     </select>
     <input type='submit' value=' Delete '>

     </form>

</td>