ช่วยดูโค๊ดบันทึกรูปให้หน่อยครับ มันบันทึกไม่ได้ [PHP]

<?
		
include("config.php");
 	$strSQL = "SELECT * FROM member WHERE Id_mem = '".$_SESSION["id"]."' ";
	$objQuery = mysql_query($strSQL);
	$objResult = mysql_fetch_array($objQuery);
?>
          </p>คุณ <?=$objResult["name_mem"];?>
          <form id="placeholder" name="form1" method="post" action="member_pic_save.php?Id_mem=<? echo $_SESSION["id"];?>" >
          <table width="525" border="0" align="center" cellpadding="0" cellspacing="0" class="three">
            <tr>
              <td width="181" align="right"><strong>รูปประจำตัว</strong></td>
              <td width="14" align="right">&nbsp;</td>
              <td width="330" ><img src="image/<?php echo $objResult["pic_mem"];?>" width="150" /></td>
            </tr>
            <tr>
              <td align="right">เลือกรูปใหม่</td>
              <td align="right">&nbsp;</td>
              <td ><input type="file" name="filepic" /></td>
            </tr>
            <tr>
              <td colspan="3" align="center"><input type="submit" name="OK" value="    บันทึก    " />
                &nbsp; &nbsp;
                <input type="reset" name="button2" id="button3" value="ยกเลิก" onclick="window.close();" />
                <input type="hidden" name="hdnOldFile" value="<?php echo $objResult["pic_mem"];?>" /></td>
            </tr>
          </table>
          </form>

<? session_start();
 include ("config.php");	
	
		if($_FILES["filepic"]["name"] != "")
		{
			date_default_timezone_set('Asia/Bangkok');	
			$fileName = date("YmdHis")."_".$_FILES["filepic"]["name"];
			if(move_uploaded_file($_FILES["filepic"]["name"],"image/".$fileName))
			{

				//*** Delete Old File ***//			
				@unlink("image/".$_POST["hdnOldFile"]);
				
				//*** Update New File ***//
				$strSQL = "UPDATE member ";
				$strSQL .=" SET pic_mem = '".$fileName."' WHERE Id_mem = '".$_GET["Id_mem"]." ' ";
				$objQuery = mysql_query($strSQL);		

			}
		}
		
 if($objQuery){ 
	 echo "<script language=\"javascript\">";
echo "alert('เปลี่ยนรูปประจำตัวเรียบร้อยแล้ว')";
echo "javascript:close();</script>";
?>
<center><b>[ <a href="javascript:close();">ปิดหน้าต่างนี้</a> ]</b></center>
 <? } else { 
	 echo "<script language=\"javascript\">";
echo "alert('ไม่สามารถเปลี่ยนรูปประจำตัวได้')";
echo "</script>";
	 echo '<meta http-equiv="refresh" content="0;url=index.php">';
 }  
 
mysql_close();  
?>