เมื่ออัฟไฟล์ขึ้นโอสจริง ทำไมคลิกปุ่ม แบ่งหน้าเพจไม่ได้ครับ ต้องส่งค่ายังไง ช่วยแนะนำด้วยคัฟ

<?php
$row=20;//กำหนดจำนวนคอลัมล์ที่จะให้แสดงกี่แถว
if($page<=0)$page=1;
$total_data=mysql_num_rows(mysql_query("select*from product"));
$total_page=ceil($total_data/$row);// ceil เป็นฟั่งชั่นที่ใช้ปัดเศษ
if($page>=$total_page)$page=$total_page;
$start=($page-1)*$row;
$sql="select*from product left join generation on product.id_gen=generation.id_gen
left join category on product.cat_id=category.cat_id
left join branch on product.id_b=branch.id_b
where product.pro_id order by pro_id desc limit $start,20";
$query=mysql_query($sql);
$i++;
while($result=mysql_fetch_array($query)){
	  ?>
      <script language="JavaScript">
function Conf<?php echo $result["pro_id"]; ?>(object) {
if (confirm("ยืนยันการลบ รถรุ่น [   <?php echo $result["name_gen"]; ?>    ] ") ==true) {
return true;
}
return false;
}
            </script> 
      <tr>
        <td align="center"><?php echo $i++;?>.</td>
        <td align="center"><font color="#FF0000"><?php echo $result["pro_id"];?></font></td>
        <td align="center"><?php echo $result["namw_b"];?></td>
        <td align="center"><a href="detailpro.php?pro_id=<?php echo $result["pro_id"];?>" target="_blank"><?php echo $result["cat_name"]; ?></a></td>
        <td align="center"><a href="detailpro.php?pro_id=<?php echo $result["pro_id"];?>" target="_blank"><?php echo $result["name_gen"];?></a></td>
         <td align="center"><?php echo $result["coler"];?></td>
          <td align="center"><font color="#FF0000"><?php echo $result["pro_year"];?></td>
        <td align="center"><font color="#0000FF"><?php echo (number_format($result["pro_price"]));?></font>&nbsp;&nbsp;บาท</td>
        <td align="center"><a href="editpro.php?pro_id=<?php echo $result["pro_id"];?>">แก้ไข</a></td>
        <td align="center"><a href="<?php echo $_SERVER['PHP_SELF'];?>?Action=Delete&pro_id=<? echo $result["pro_id"];?>" onClick="return Conf<?php echo $result["pro_id"]; ?>(this)">ลบ</a></td>
      </tr>
      <?php }?>
     
    </tbody>
  </table>
  <br>
  <ul class="pagination pagination-lg">
    <li <?php if($page==1)echo 'class="disabled"'; ?>>
      <a href="listpro.php?page=<? echo $page-1?>" aria-label="Previous">
        <span aria-hidden="true">&laquo;</span>
      </a>
    </li>
    <?php for($i=1;$i<=$total_page;$i++){?>
    <li <?php if($page==$i)echo 'class="active"'; ?>><a href="listpro.php?page=<?php echo $i?>"><?php echo $i?></a></li>
    <?php }?>
    <li <?php if($page==$total_page)echo 'class="disabled"'; ?>>
      <a href="listpro.php?page=<?php echo $page+1?>" aria-label="Next">
        <span aria-hidden="true">&raquo;</span>
      </a>
    </li>
  </ul>