Edit แล้วอัพเดทข้อมูลไม่ได้ครับ จนปัญญาแล้วครับช่วยทีครับผม (PHP+MySQL)

<form action="EditSave.php?PES_ID=<?=$_GET["PES_ID"];?>" name="frmEdit" method="post">
<?
$objConnect = mysql_connect("localhost","root","1234") or die("Error Connect to Database");
$objDB = mysql_select_db("Projectfinal");
$strSQL = "SELECT * FROM PES WHERE PES_ID = '".$_GET["PES_ID"]."' ";
$objQuery = mysql_query($strSQL);
$objResult = mysql_fetch_array($objQuery);
if(!$objResult)
{
echo "Not found PES_ID=".$_GET["PES_ID"];
}
else
{
?>
 <table width="764" border="1">
    <tr>
      <th width="78"> <div align="center">Name </div></th>
      <th width="140"> <div align="center">Lastname </div></th>
      <th width="95">ValueMarket</th>
      <th width="95">Contract</th>
      <th width="95">Match</th>
      <th width="95"> <div align="center">Goal </div></th>
      <th width="56"> <div align="center">Assist </div></th>
      <th width="58"> <div align="center">Salary </div></th>
      </tr>
<tr>
  <td><div align="center"><input name="PES_Name" type="text" id="PES_Name" value="<?=$objResult["PES_Name"];?>" size="5"></div></td>
<td><input name="PES_Lastname" type="text" id="PES_Lastname" value="<?=$objResult["PES_Lastname"];?>" size="5"></td>
<td><input name="ValueMarket" type="text" id="PES_Contract" value="<?=$objResult["ValueMarket"];?>" size="5"></td>
<td><div align="center"><input name="PES_Contract" type="text" id="PES_Contract" value="<?=$objResult["PES_Contract"];?>" size="5"></div></td>
<td align="right"><input name="Match" type="text" id="Match" value="<?=$objResult["Macth"];?>" size="5"></td>
<td align="right"><input name="Goal" type="text" id="Goal" value="<?=$objResult["Goal"];?>" size="5"></td>
<td align="right"><input name="Assist" type="text" id="Assist" value="<?=$objResult["Assist"];?>" size="5"></td>
<td align="right"><input name="PES_Salary" type="text" id="PES_Salary" value="<?=$objResult["PES_Salary"];?>" size="5"></td>
</tr>
</table>
<input type="submit" name="submit" value="submit">
<?
}
mysql_close($objConnect);
?>
</form>

 <?
$objConnect = mysql_connect("localhost","root","1234") or die("Error Connect to Database");
$objDB = mysql_select_db("projectfinal");
$strSQL = "UPDATE PES SET ";
$strSQL .="PES_Name = '".$_POST["PES_Name"]."' ";
$strSQL .=",PES_Lastname= '".$_POST["PES_Lastname"]."' ";
$strSQL .=",ValueMarket = '".$_POST["ValueMarket"]."' ";
$strSQL .=",PES_Contract = '".$_POST["PES_Contract"]."' ";
$strSQL .=",Match = '".$_POST["Match"]."' ";
$strSQL .=",Goal = '".$_POST["Goal"]."' ";
$strSQL .=",Assist = '".$_POST["Assist"]."' ";
$strSQL .=",PES_Salary = '".$_POST["PES_Salary"]."' ";
$strSQL .="WHERE PES_ID = '".$_GET["PES_ID"]."' ";
$objQuery = mysql_query($strSQL);
if($objQuery)
{
echo "Save Done.";
}
else
{
echo "Error Save [".$strSQL."]";
}
mysql_close($objConnect);
?>