Show success message after updating a particular column value in a table on form submit

See more:

PHP

SQL-Server-2008R2

<?php
if(isset($_POST['submit']))
{
$branch=$_POST['Region'];
if($_POST['Region'] =='' || $_POST['Region']=='ALL')
{
$Qry="select Branch_code,Palmtec_id,Download_status from tbl_download order by Branch_code,Palmtec_id";	
}
else
{
	$Qry="select Branch_code,Palmtec_id,Download_status from tbl_download where Branch_code='$branch' order by Branch_code,Palmtec_id";
}
	$macid=$_POST['brmacid'];
	if($_POST['brmacid']=='' || $_POST['brmacid']=='ALL')
	{
		$Qry.="";
	}
	else
	{
		$Qry="select Branch_code,Palmtec_id,Download_status from tbl_download where Branch_code='$branch' and Palmtec_id='$macid' order by Branch_code,Palmtec_id";
	}
	
	$up=$_POST['up'];
	if($_POST['up']=='0' || $_POST['up']=='1')
	{
	$Qry="update tbl_download set Download_status='$up' where Branch_code='$branch' and Palmtec_id='$macid' 
	(select Branch_code,Palmtec_id,Download_status from tbl_download
     where Branch_code='$branch' and Palmtec_id='$macid') 
	";	
	}    	
	$Res	=	mssql_query($Qry);	
	//echo $Qry;
	echo "<table border ='1' align ='center' cellpadding='1' cellspacing='1'  width='900' bgcolor='#FFFFFF' style='border:1px solid #0080FF;' >"	;
	echo "<tr><th style='background:#58ACFA;'>S.No</th>
	      <th style='background:#58ACFA;'>Branch_code</th>
	      <th style='background:#58ACFA;'>Palmtec_id</th>
	      <th style='background:#58ACFA;'>Download_status</th></tr>";

What I have tried:

I had tried Javascript popup but the problem is I have three fields...every field displays alert message on button click......I want to create a condition like only when an update is made the alert box must work...orelse it has to be disabled... Can anyone help me out? Plz...