INSERT DATA 2 TABLE แต่เข้า TABLE เดียว

<?php
session_start();
require 'db_1.php';

  $Total = 0;
  $SumTotal = 0;

  $strSQL = " INSERT INTO orders (order_date,Name,mem_id,o_name,status)
	VALUES
	('".date("Y-m-d H:i:s")."','".$_POST["txtName"]."','".$_POST["txtmem_idl"]."','".$_POST["txto_namel"]."','complete
') 
  ";
 $objQuery= mysql_query($strSQL) or die(mysql_error());

  $strOrderID = mysql_insert_id();

   for($i=0;$i<=(int)$_POST['intLine'];$i++)
	{
		$txtid=$_POST['txtProductID'][$i];
		$txtqty=$_POST['txtQty'][$i];
		
		$strSQL = "INSERT INTO order_detail(DetailID,order_id,o_id,Qty)
			VALUES 
			('$strOrderID','$txtid','$txtid','$txtqty')";
			 $objQuery= mysql_query($strSQL) or die(mysql_error());
		
	}
echo "บันทึกข้อมูลเรียบร้อย";

mysql_close($objConnect);

session_destroy();

header("location:finish_order.php?OrderID=".$strOrderID) ;
?>