Mam dziwny problem z sesją...
Mianowicie:
Kiedy jestem wylogowany okno wygląda tak:

Po zalogowaniu się:

A oto kod żródłowy:
index.php
<?
include "config.php";
include "style.css";
echo '<center><table width="1024" border="1" height="200"> <tr>
<td> </td>
</tr>
</table>';
if (!(isset($_SESSION['valid']) && $_SESSION['valid'])) { include 'login.php';
} else {
include 'view.php';
}
?>
<html>
<head>
<title>Strona</title>
</head>
<body>
</body>
</html>
login.php
<?
include "config.php";
$error='';
$wynik = mysql_query("SELECT * FROM users WHERE user='$user' ") or
die('Błšd zapytania');
if (isset($_GET['logoff'])) {
}
}
elseif (isset($_SESSION['valid']) && $_SESSION['valid']) { }
$user = isset($r['user']) ?
$r['user'] 
: ''; $pass = isset($r['pass']) ?
$r['pass'] 
: ''; if ( ($user == $r['user']) && ($pass == $r['pass']) ) {
$_SESSION['valid'] = 1;
$_SESSION['user'] = $r['user'];
} else {
$error = 'Niepoprawne dane użytkownika lub hasło.';
}
}
?>
<?
include "style.css";
?>
<html>
<head>
<title>Logowanie</title>
</head>
<body>
<?
if ($error) { echo "<p id=\"error\">{$error}</p>\n"; } ?>
<table width="235">
<form action="<?= $_SERVER['PHP_SELF'] ?>" method="post">
<td colspan="3">Zaloguj się :P</td>
<tr>
<td>Logi: </td><td><input type="test" name="user" class="pole" maxlength="12" value="<?= @$user ?>"></td> <br />
</tr><tr>
<td>Haslo: </td><td><input type="password" name="pass" class="pole" maxlength="12" value="<?= @$pass ?>"> </td>
</tr><tr>
<td valign="top"><input type="submit" value="Zaloguj" class="przycisk" /></form></td>
<td ><form action="register.php" method="post"><input type="submit" value="Rejestracja" class="przycisk" /></form>
</tr>
<tr height="67"></tr>
</table>
</form>
</body>
</html>
view.php
<?
include "config.php";
if (!(isset($_SESSION['valid']) && $_SESSION['valid'])) { }
$wynik = mysql_query("SELECT * FROM users WHERE user='$user' ") or
die('Blad zapytania');
?>
<?
include "style.css";
?>
<html>
<head>
<title>Elo</title>
</head>
<body>
<br>
<table width="235">
<tr>
<td>
Witaj!<br>
Zalogowales sie jako:
<? echo $r[nick
]; ?> </td>
</tr>
<tr>
<td>
<a href="login.php?logoff=true"> Logout</a></td>
</tr>
<tr height="112"></tr>
</table>
</body>
</html>