เวลาแก้ไขรูปเมื่อเพิ่มรูปแล้วกดบันทึก จะค้างที่หน้า edit_adminsave ต้องแก้ตรงไหนค่ะ

<?php
	$hostname = "localhost";
	$username = "root";
	$password = "123456";
	
	$conn = mysql_connect($hostname,$username,$password);
	if(!$conn)
		die("ไม่สามารถติดต่อกับ MySQLได้");
	$dbname = "bookroom"; 
	mysql_select_db($dbname,$conn)
		or die("ไม่สามารถเลือกใช้งานฐานข้อมูล $dbnameได้ ");
	mysql_query("SET NAMES TIS620");
  $config[dataDir] = "images/";

?>

   <td>รูปภาพ</td>
              <td><span class="text1">
                <input name="adminPicture" type="file" id="adminPicture"  size="30" />
              <input name="adminPicture1" type="hidden" id="adminPicture1" value="<?php echo "$adminPicture" ?>" size="40"></span></td>

<?php
	session_start();
	$adminID = $_REQUEST["adminID"];
	$prenameID = $_REQUEST["prenameID"];
	$adminName = $_REQUEST["adminName"];
	$adminSurname = $_REQUEST["adminSurname"];
	$positionID = $_REQUEST["positionID"];
	$adminPassword = $_REQUEST["adminPassword"];
	$adminRepass = $_REQUEST["adminRepass"];
	$filename=$_FILES['adminPicture1']['name'];
	$adminPicture = $_FILES['adminPicture1']['tmp_name'];
	?>
	<meta http-equiv="Content-Type" content="text/html; charset=tis-620" />
<?php include("config.php");
$ff = strrchr($filename,".");

$upfilename =strftime("%S%M%H").time().$ff;
$uploadfile = $config[dataDir] . $upfilename;

if ($filename == "" )
{

$sql="update admin set prenameID='$prenameID',";
		$sql.="adminName='$adminName',";
		$sql.="adminSurname='$adminSurname',";
		$sql.="positionID='$positionID',";
		$sql.="adminPassword='$adminPassword',";
		$sql.="adminRepass='$adminRepass'";
		$sql.="where adminID ='$adminID'";
}
else
{
@unlink("$config[dataDir]$adminPicture1");
copy($adminPicture,"images/$upfilename");

$sql="update admin set prenameID='$prenameID',";
		$sql.="adminName='$adminName',";
		$sql.="adminSurname='$adminSurname',";
		$sql.="positionID='$positionID',";
		$sql.="adminPassword='$adminPassword',";
		$sql.="adminRepass='$adminRepass',";
		$sql.="adminPicture='$upfilename'";
		$sql.="where adminID ='$adminID'";

	mysql_query($sql,$conn)
	or die("พบข้อผิดพลาด") .mysql_error();
	mysql_close($conn);
	//echo "แก้ไขผู้ดูแลระบบเรียบร้อยแล้ว";
	echo "<meta http-equiv=\"refresh\" content=\"1;URL=showadmin.php\">";
}
?>
</body>
</html>