Hi! If I understand you correctly, I hope this helps: <? // file.php ob_start(); session_start(); If (!isset($_SESSION['login'])){ If ( !( isset($_POST['name']) && isset($_POST['password']) && trim($_POST['name'])!="" && trim($_POST['password'])!="" ) ){ ?> <form method="post" action="file.php"> <input type="text" name="name"> <input type="password" name="password"> </form> <? } else { if (trim($_POST['name'])=="yourname" && trim($_POST['password'])=="yourpassword"){ $_SESSION['login']=$_POST['name']; Header("Location file.php"); } else { // wrong data. Header("Location file.php"); } } } else { $name=$_SESSION['login']; echo "You are logged as ".$name; } ?> There are probably some errors I haven't run the code. Pedro. -----Mensagem original----- De: rory walsh [mailto:rorywalsh@xxxxxx] Enviada: quinta-feira, 3 de Março de 2005 12:01 Para: php-general@xxxxxxxxxxxxx Assunto: Preventing data from being reposted? Is there anyway I can prevent data from being reposted when I hit the back button on my browser? When I hit back I get a message from my browser asking do I want to repost the data, can I prevent this window from appearing? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php