ช่วยหน่อยนะครับ เรื่องการ update ค่าตาราง แบบง่าย ๆ น่ะครับ

<?
	$tbl_name = "jos_approve_list";
	$sql="select*from $tbl_name where vm_departmentid='$mydepid'";
	$result=mysql_query($sql);
	$count=mysql_num_rows($result);
	if($count==0)
	{
		echo "<BR><B><CENTER><I>***ไม่มีรายการ***</I></CENTER></B>";
	}
	else
	{
	echo"<LEFT><table width='80%' cellspacing='0' border='1' bordercolor='Pink'>";
	echo"<tr bgcolor='#F9B7FF'>
			<th>Order Number</th>
			<th>Order ID</th>
			<th>Item name</th>
			<th>Quantity</th>
			<th>Item price</th>
			<th>Department</th>
			<th>Status</th>
			<th>Update Status</th>
		
			";
	while($row=mysql_fetch_array($result))
		{
			if($count%2==0)
				echo "<tr bgcolor='#FFFFFF'>";
			else
			{
				echo "<tr bgcolor='#F9B7FF'>";
			}
			echo "<td style='text-indent:30' width='50'>&nbsp;".$row['app_list_id']."</td>";
			echo "<td style='text-indent:30' width='50'>&nbsp;".$row['order_id']."</td>";
			echo "<td style='text-indent:10' width='180'>&nbsp;".$row['item_name']."</td>";
			echo "<td style='text-indent:30' width='50'>&nbsp;".$row['product_quantity']."</td>";
			      echo "<td width='50'><div align='right'>".number_format($row['product_final_price'],2,'.',',')."</div></td>";
			echo "<td width='100'><center>&nbsp;".$row['vm_departmentid']."</center></td>";
			echo "<td style='text-indent:30' width='50'>&nbsp;".$row['approve_status']."</td>";
		     echo "<td width='50' align =center>update</td>";
		
			$count++;
		}
	echo "</tr></table></center>";
	}
?>