สอบถามการ link รูป คลิกแล้ว ไม่ไป ผิดตรงไหนช่วยบอกหน่อยค่ะ

<?
$order=$_get['order'];
if ($order=="") {$order=1;}
$start=$order-1;
echo  $order;
echo  $start;
include "connect.php";
$sql="select * from tb_photo order by id_photo desc limit
$start,1";
$result=mysql_db_query($dbname,$sql);
$r=mysql_fetch_array($result);
$id_photo=$r[id_photo];
$name_photo=$r[name_photo];
$detail_photo=$r[detail_photo];
echo $id_photo;
echo  $name_photo;
echo  $detail_photo;
$sql="select* from tb_photo";
$result=mysql_db_query($dbname,$sql);
$total=mysql_num_rows($result);
echo "<h2>DISPLAY PHOTO</h2>";
echo "<img src='images/$name_photo' border=0><p>";
echo "<b>รายละเอียด :</b><br>";
echo "$detail_photo<p>";
if ($order>1) {
$prev=$order-1;
	echo "<a href='view.php?order=$prev'> 
	<img src= images/arrow1.jpg border=0></a>&nbsp;";
}
echo  "($order of $total)";
if ($order<>$total) {
$next=$order+1;
	echo "&nbsp;<a href='view.php?order=$next'> //ไปหน้าถัดไปไม่ได้ค่ะ
	<img src=images/arrow2.jpg border=0></a>";
}
mysql_close();
?>