รบกวนหน่องค่ะ...คือว่าอัพเดทข้อมูลไม่ได้...ผิดตงไหนไม่รู้ค่ะ ช่วยดูทีค่ะ

<?


echo"<center><h3>รายละเอียดสมาชิก</h3></center>";

$sql="SELECT * FROM detailuser " ;
$ans= mysql_query($sql);
$num = mysql_num_rows($ans);

echo " <TABLE border= \"0\" align=\"center\" width=\"100%\">";
echo "<TR align=\"center\" bgcolor=\"#7DF28C\" >
<TD align= \"center\" width=\"5%\"><B>ลับดับ</B></TD>
<TD align=\"center\" width=\"8%\"><B>ยศ</B></TD>
<TD width=\"20%\"><B>ชื่อ</B></TD>
<TD align=\"center\" width=\"5%\"><B>ตำแหน่ง</B></TD>
<TD align=\"center\" width=\"5%\"><B>สังกัด</B></TD>
<TD align=\"center\" width=\"10%\"><B>โทร</B></TD>
<TD align=\"center\"width=\"10%\"><B>อีเมล์</B></TD>
<TD align=\"center\"width=\"3%\"><B>แก้ไข</B></TD>
<TD align=\"center\"width=\"3%\"><B>ยกเลิก</B></TD></TR>";
for ($i = 1; $i <= $num; $i++)
{
$result = mysql_fetch_array($ans) ;

echo "<TR bgcolor=\"#D9FED3\" ><TD align= \"center\" >$i</TD>
<TD align= \"center\">$result[rank]</TD>
<TD align= \"center\">$result[fullname]</TD>
<TD align= \"center\">$result[position]</TD>
<TD align= \"center\">$result[id_department]</TD>
<TD align= \"center\">$result[tel]</TD>
<TD align= \"center\">$result[email]</TD>
<TD <CENTER><A HREF=\"admin_edituser.php?id_name=$result[id_name]\"></CENTER>แก้ไข</A>
<TD <CENTER><A HREF=\"admin_delete.php?number_in=$result[number_in]\">ลบ</CENTER></TD></TR>";
}
echo "</TABLE>";


?>

โค้ดหน้าแก้ไขข้อมูล
<?
$sql ="select * from memberuser, detailuser where
memberuser.fullname=detailuser.fullname and id_name ='$id_name' " ;
$ans = mysql_query($sql);
$result = mysql_fetch_array($ans);

$fullname = $result[fullname];
$Username = $result[Username];
$Password = $result[Password];
$rank = $result[rank];
$fullname = $result[fullname];
$position = $result[position];
$tel = $result[tel];
$email = $result[email];
$id_department = $result[id_department];
$level = $result[level];

?>


<table border= "0 " bgcolor="#FCE294" align="center">
<form name="adduser" action="edituser_action.php" method="post" >
<tr><td align="center">Username </td><td><input name="Username" value= "<? echo $Username;?>"size= "20 " ></td><tr>
<tr><td align="center">Password</td><td><input name="Password" value= "<? echo $Password;?>"size= "50 " ></td><tr>
<tr><td align="center">ยศ</td><td><input name="rank" value= "<? echo $rank;?>"size= "20 " ></td><tr>
<tr><td align="center">ชื่อ สกุล</td><td><input name="fullname" value= "<? echo $fullname;?>"size= "20 " ></td><tr>
<tr><td align="center">ตำแหน่ง</td><td><input name="position" value= "<? echo $position;?>"size= "20 " ></td><tr>
<tr><td align="center">โทรศัพท์</td><td><input name="tel" value= "<? echo $tel;?>"size= "20 " ></td><tr>
<tr><td align="center">อีเมล์</td><td><input name="email" value= "<? echo $email;?>"size= "20 " ></td><tr>
<tr><td align="center">สังกัดสำนักงาน</td><td>
<SELECT name= "id_department" >
<OPTION SELECTED value= "t1">สลก.ทอ.
<OPTION value= "t2" >สน.เสธ.ทอ.
<OPTION value= "t3" > สน.รอง เสธ.ทอ.(กพ., กบ.)
<OPTION value= "t4" > สน.รอง เสธ.ทอ.(ยก.)
<OPTION value= "t5" >สน.รอง เสธ.ทอ.(กร., ขว.)
<OPTION value= "t6" > สน.ผช.รอง เสธ.ทอ.(กพ.)
<OPTION value= "t7" > สน.ผช.รอง เสธ.ทอ.(ขว.)
<OPTION value= "t8" > สน.ผช.รอง เสธ.ทอ.(ยก.)
<OPTION value= "t9" > สน.ผช.รอง เสธ.ทอ.(ยบ.)
<OPTION value= "t10" > สน.ผช.รอง เสธ.ทอ.(กร.)
</SELECT></td><tr>

<tr><td align="center">ระดับ</td><td>
<SELECT name= "level" >
<OPTION SELECTED value= "user">User
<OPTION value="admin" > Admin
</SELECT></td><tr>

<tr><td colspan= "2"><center><INPUT TYPE='SUBMIT' VALUE = "ส่งข้อมูล">
<INPUT TYPE='RESET' VALUE = "ยกเลิก"> </center></td></tr>
</form>
</table>
</center>
</td>
</tr>
</table>
</td>
</tr>

</table>
</body>
</html>

โค้ด action
<?

include("../connect.php");

$sql1="update memberuser set
Username='$Username',
Password='$Password',
fullname='$fullname',
level='$level',
id_department='$id_department'
where id_number ='$id_name' " ;
$ans1= mysql_query($sql1);

$sql2="update detailuser set
fullname='$fullname',
rank ='$rank' ,
position= '$position' ,
tel ='$tel' ,
email= '$email'
where id_name ='$id_name' " ;
$ans2= mysql_query($sql2);



echo"<center><h3>แก้ไขข้อมูลเรียบร้อยแล้ว</h3></center>";
echo "<meta http-equiv='refresh' content='3;url=admin_userpage.php'>";
?>