รบกวนด้วยคะ ส่งค่า form ไปอีกหน้าไม่ได้ ช่วยดูให้หน่อยนะคะ

<?php 
$code = $_POST[code];
$rand1 = $_POST[rand1];
$rand2 = $_POST[rand2];

$name = $_POST[name];
$surname = $_POST[surname];
$position = $_POST[position];
$age = $_POST[age];
$address = $_POST[address];
$tel = $_POST[tel];

$fileupload = $_FILES['fileupload']['tmp_name'];
$fileupload_name=$_FILES['fileupload']['name'];
$fileupload_size=$_FILES['fileupload']['size'];
$fileupload_type=$_FILES['fileupload']['type'];

echo"$name ";
echo"$surname ";
echo"$position";
echo"$age";
echo"$address";
echo"$tel";
echo"$fileupload";

			
if( $name == " " or $surname == " " or $position ==" " or $age ==" " or $address ==" " or $tel ==" " or $fileupload ==" ")
{
echo "กรุณากรอกข้อมูลให้ครบ ^ ^ <br><br>
<a href='javascript:history.back();' ><img src='images/back.gif' align='top' border='0' ></a> <span class='style10'>ย้อนกลับ</span><br><br>";
exit();
}
$yokky = $rand1 + $rand2 ;
		if($code == $yokky)
		{				
			$date_today = date("Y-m-d");
			$time_today = date("H:i:s"); 

			include('connect_song.php'); 
			$sql = "INSERT INTO $tb_name4 VALUES (null,'$name','$surname','$position','$age','$address','tel',' ','$date_today','$time_today','$show','$one','$two')";
			$result = mysql_db_query($dbname,$sql);

				if($fileupload) 
				{ 
						$array_last = explode(".",$fileupload_name);
						$c = count($array_last) -1;
						$lastname=strtolower($array_last[$c]);

								if($lastname == "doc" or $lastname == "pdf")
								{
										$sql2 = "SELECT max(id) FROM $tb_name4";
										$result2 = mysql_db_query($dbname,$sql2);
										$row = mysql_fetch_row($result2);
						
										$jobsname = $row[0].".".$lastname;
						
										copy($fileupload,"jobs/".$jobsname);
						
										$sql3 = "UPDATE $tb_name4 SET fileupload ='$jobsname'  WHERE id ='$row[0]' ";
										$result3 = mysql_db_query($dbname,$sql3);
								}//ใช่ pdf + doc
								else
								{
										echo "นามสกุลไฟล์  doc และ pdf เท่านั้น ^ ^ <br><br>
										<a href='javascript:history.back();' ><img src='images/back.gif' align='top' border='0' ></a> <span class='style10'>ย้อนกลับ</span><br><br>";
										exit();
								}// pdf + doc เท่านั้น
	
				}
				$sql3 = "SELECT * FROM $tb_name4 WHERE id = $row[0] " ;
				$result3 = mysql_db_query($dbname,$sql3);
				$row3 = mysql_fetch_array($result3);
							$name = $row3[1];
							$surname = $row3[2];	
				echo "คุณ $name $surname <br>ได้ เรียบร้อยแล้วคะ .. ";
/*echo "<meta HTTP-EQUIV='Refresh' CONTENT='5; URL=index.php'>";*/
			
		}
		else
		{
			echo "บวกเลข ไม่ถูกต้องคะ ^_____^ <br><br>
			<a href='javascript:history.back();' ><img src='images/back.gif' align='top' border='0' ></a> <span class='style10'>ย้อนกลับ</span><br><br>";
			exit();
		}	



mysql_close();


?>