ปัญหาการแบ่งหน้า ปรากฏว่า มันโชว์หน้าที่2ซึ่งเป็นยกระทู้ที่3และ4 แถมกดหน้าแรกไม่ได้แถมไม่มีปุ่ม previous

<?        
                     include "connectdb.php";
                     include "function.php";

$sql = "select * from tb_question";
$rs = mysql_query($sql);
$totalrow = mysql_num_rows($rs);

$pagesize = 2;  // แสดงจำนวนกระทู้ในแต่ละหน้า ทดสอบ
$totalpage = (int)($totalrow/$pagesize);
if(($totalrow%$pagesize)!=0){
$totalpage += 1;
}
// หา record แรกที่จะแสดงของแต่ละหน้า
if(isset($page)){
$pageno = $page;
$start = $pagesize*($pageno-1);
}else{
$pageno = 1;
$start = 0;
}
               echo "<table width='540' border='0' align='center'>
               <tr><td><b align='left'  class='style16' style='padding-left:5px; font-size:16px'>All Topics.</b>
               <div align='right' class='style14' style='padding-right:5px; padding-bottom:2px;'>| <a href='question_form.php'>New Topic</a> |</div></td></tr>
               <tr><td><div align='center' ><img src='images/lineheader.gif' width='540' border='0' /></div></td></tr>
       <table width='540' border='1' align='center' cellpadding='0' cellspacing='0' bordercolor='#dadada' style='border-style:dotted'>
  <tr >
    <td width='540' background='images/bg_list.gif'><table width='540' border='1' cellspacing='0' bordercolor='#dadada'>
     
     
      </tr>
      <tr>
     
        <td width='50' class='style16' align='center'>ID</td>
        <td width='300' class='style16' align='center'>Topics</td>
        <td width='90' class='style16' align='center'>Author</td>
        <td width='100' class='style16' align='center'>Date</td>
      </tr>";

   
$sql = "select * from tb_question order by id_ques desc limit $start,$pagesize";
$rs1 = mysql_query($sql);
  while ($record=mysql_fetch_array($rs1)) {
     $id_ques=$record[id_ques];
   $title_ques=$record[title_ques];
   $detail_ques=$record[detail_ques];
   $name_ques=$record[name_ques];
   $email_ques=$record[email_ques];
   $date_ques=$record[date_ques];
   
   $title_ques=htmlspecialchars($title_ques);
   $name_ques=htmlspecialchars($name_ques);
   
   $detail_ques=wordwrap(nl2br(htmlspecialchars($detail_ques)),30,"\n",true);
   $date_ques=displaydate($date_ques);
   echo "<tr bgcolor='#ffffff'>
   <td width='50' class='style16' ><center><img src='images/leaf.gif' border='0' />$id_ques</center></td>
   <td width='300' class='style16' ><a href='answer_view.php?id_ques=$id_ques' target='_blank'>$title_ques</a></td>
   <td width='90' class='style16' ><center>$name_ques </center></td>
   <td width='100' class='style16' ><center>$date_ques</center></td>
   </tr>";
  }//end while
        echo" <td colspan='4' background='images/bg_list.gif' class='style17'>&nbsp;</td>
      </tr>
    </table></td>
  </tr>
</table>";
?>
<?
if($pageno >1){
echo "<b class='text'><a href='service.php?page=",$pageno-1,"'>Previous</a></b> |";
}
for($i=1;$i<=$totalpage;$i++){
if($pageno==$i){
echo"<b class='text'>".$i."</b> |";
}else{
echo "<b class='text'> <a href='service.php?page=$i'>$i</a> </b>|";
}
}
if($pageno<$totalpage){
echo "<b class='text'> <a href='service.php?page=",$pageno+1,"'>Next</a></b>";
}
?>