unable to find the bug

[srinivas gajing]

i'm using PHP as my language in devlopeing the application and MYSQL as database

i'm using

<?

$sql="SELECT * from `addjobs` WHERE id=".$_GET['id'];
$rec=mysql_query($sql,$link);
$recrow=mysql_fetch_row($rec);


if($_SERVER['REQUEST_METHOD']=='POST')
{

$id=$_POST['did'];
$sql= "DELETE FROM addjobs WHERE id = $id";

//echo $sql;
//$res = mysql_query($sq1,$link);
$res = execute_non($sq1);

header("location:jobs.php?msg=3");
}

?>
where as the data base is not changing i.e. not updating with execution of following code. where as the query what i have given in this code is executed successfully sql query, i can't able to find out the bug plz help me to solve this problem.