ต้องการให้เลขเรียกลำดับจากน้อยไปมาก ต้องใส่โค้ด i=1 และ i++ ตรงไหนคะพี่

<?php
error_reporting(0);
session_start();
$ses_adminID =$_SESSION["ses_adminID"];
if($ses_adminID  ==""){
	?>
<script language="javascript">alert("กรุณาเข้าสู่ระบบ");</script>
<script language="JavaScript"> document.location.href="login_admin.php"; </script>
 <?php        
}	else 
?>
<meta http-equiv="Content-Type" content="text/html; charset=tis-620" />
<link href="../css/style.css" rel="stylesheet" type="text/css" />
<style type="text/css">
<!--
.style3 {	font-size: 14px;
	font-weight: bold;
}
.style4 {font-size: 16px}
-->
</style>
<?php include("header.php"); ?>                    
<?php include("menu.php"); ?>        
<?php include("config.php"); ?>                   
  <td width="75" align="center" valign="top"><table width="600" border="0">
    <tr>
      <td>&nbsp;</td>
    </tr>
    <tr>
      <td><div align="right"><a href="tbl_person.php">.::เพิ่มผู้ใช้บริการ::.</a></div></td>
    </tr>
  </table>
    <table width="730"  border="0" align="center" cellpadding="0" cellspacing="0">
      <tr>
      <td><table width="100%"  border="0" cellspacing="0" cellpadding="0">
        <tr>
          <td><table width="100%"  border="0" cellspacing="0" cellpadding="0">
            <tr>
              <td><form action="list_personsearch.php" method="post">
                <div align="center" class="text"> ค้นหาตาม :
                  <select name="field" class="text">
                    <option value="prename">คำนำหน้าชื่อ</option>
                    <option value="personName">ชื่อ</option>
                    <option value="personSurname">นามสกุล</option>
                    <option value="userType">ประเภทผู้ใช้</option>
                  </select>
                  <input name="keyword" type="text" class="text" />
                  <input name="submit2" type="submit" value="ค้นหา" />
                </div>
              </form></td>
            </tr>
            <tr>
              <td><?php echo "<br>";?>
                <?php
	if($_REQUEST["field"]){
	$field = $_REQUEST["field"];
	}else{
	$field = "prename";
		}
		if($_REQUEST["keyword"]){
		$keyword = $_REQUEST["keyword"];
		}else{
		$keyword = "";
		}
	?></td>
            </tr>
            <tr>
              <td><table   class="text"width="717" border="1" cellspacing="1" align="center" cellpadding="0" bordercolor="#FFCC00">
                <?php 
$sql = "SELECT * FROM person";
$Per_Page = 10; // แสดงหน้าละ 10
if($_REQUEST['Page']){
$Page = $_REQUEST['Page'];
}else{
$Page=1;
}
$Prev_Page = $Page-1;
$Next_Page = $Page+1;

$query = mysql_query($sql);
$Page_start = ($Per_Page*$Page)-$Per_Page;
$Num_Rows = mysql_num_rows($query);

if($Num_Rows<=$Per_Page)
$Num_Pages =1;
else if(($Num_Rows % $Per_Page)==0)
$Num_Pages =($Num_Rows/$Per_Page) ;
else 
$Num_Pages =($Num_Rows/$Per_Page) +1;

$Num_Pages = (int)$Num_Pages;

if(($Page>$Num_Pages) || ($Page<0))
print "<center><b>จำนวน $Page มากกว่า $Num_Pages ยังไม่มีข้อความ<b></center>";
$sql = "SELECT * FROM person  LIMIT $Page_start , $Per_Page";
				$query = mysql_query($sql)or die ("no select".mysql_error());
//ส่วนแสดงผล
$query = mysql_query($sql);
?>
                <?php
		include("config.php");
	
		$sql = "select * from person,m_prename,m_usertype where  person.prenameID = m_prename.prenameID and person.userTypeID = m_usertype.userTypeID and  $field like '%$keyword%'  LIMIT $Page_start , $Per_Page";
		$query = mysql_query($sql);
		?>
                <tr bgcolor="#FFCC33" class="text" >
                  <td width="17%" align="center" bgcolor="#FFCC33" class="texthead">รหัส</td>
                  <td width="40%" align="center" bgcolor="#FFCC33" class="texthead">ชื่อ-สกุล</td>
                  <td width="23%" align="center" bgcolor="#FFCC33" class="texthead">ประเภทผู้ใช้บริการ</td>
                  <td width="20%" align="center" bgcolor="#FFCC33" class="texthead">ดำเนินการข้อมูล</td>
                </tr>
                <?php
						  		$count==1;
								while($result = mysql_fetch_array($query)){
									$personID = $result['personID'];
									$prenameID = $result['prenameID'];
									$prename = $result['prename'];
									$personName = $result['personName'];
									$personSurname = $result['personSurname'];
									$userTypeID = $result['userTypeID'];
									$userType = $result['userType'];
								//	$group_id = $result['group_id'];
								//	$teacher_telephone = $result['teacher_telephone'];
							?>
                <tr  >
                  <td class="text"><div align="center">
                    <?php  echo "$personID";?>
                  </div></td>
                  <td class="text"><div align="left"><?php echo "$prename";?><?php echo "$personName";?> <?php echo "$personSurname";?></div></td>
                  <td class="text"><div align="center">
                    <?php  echo "$userType";?>
                  </div>
                    <div align="center"></div>
                    <div align="left"></div>
                    <div align="center"></div>
                    <div align="center"></div>
                    <div align="center"></div>
                    <div align="center"></div></td>
                  <td class="text"><div align="center">
                    <div align="center"><a href="edit_person.php?personID=<?php echo "$personID";?>">แก้ไข</a></div></td>
                  <?php  $count++;} ?>
                </tr>       
                 <?php 
	   $i++;
  ?>  
              </table></td>
            </tr>
          </table></td>
        </tr>
      </table>
        <?php echo "<br>";?>
        <table width="700" border="0" align="center" cellpadding="5" cellspacing="0">
          <tr>
            <td align="center" class="text"> จำนวนข้อมูลผู้ใช้บริการทั้งหมด <?php echo $Num_Rows;?> รายการ รวมทั้งหมด : <?php echo $Num_Pages;?> หน้า </td>
          </tr>
          <tr>
            <td align="center" class="text"><?php
							if($Prev_Page) 
								echo " <a href='list_person.php?Page=$Prev_Page'><< ย้อนกลับ </a>";
								for($i=1; $i<$Num_Pages; $i++){
									if($i != $Page)
									echo "<a href='list_person.php? Page=$i '> $i </a>";
										else 
											echo " $i ";
								}
								/*สร้างปุ่มเดินหน้า */
								if($Page!=$Num_Pages)
									echo "<a href ='list_person.php?Page=$Next_Page'> หน้าถัดไป>> </a>";
mysql_close();
?></td>
          </tr>
        </table>
        <table width="100%" border="0" cellspacing="0" cellpadding="5">
        </table>
        <?php echo "<br>";?>
        <table width="100%" border="0" cellspacing="0" cellpadding="5">
        </table></td>
    </tr>
</table>
  </table>
            <?php include("footer.php"); ?>