user login with remember me option

Ok now i want to create a user login box with a remember me checkbox, if a user checks the checkbox then it will store the value in a cookie else it will store in a session var not i am a newbie so how do i do that can anyone please explain?? my form is

<form action="index.php" method="POST">
<input name="user" type="text" size="32" />
<input name="pass" type="text" size="32" />
<input name="remember" type="checkbox" />
<input type="submit" value="submit" />
</form>

 

sorry if for got to post the php code

<?php

session_start();


include realpath('init.php');
include(BB_INC.'config.php');

$bbuser = $_POST['user'];
$bbpass = $_POST['pass'];
$bbremember = $_POST['remember'];

$user = stripslashes($user);
$pass = stripslashes($pass);


$login = sprintf("SELECT * FROM user WHERE user='%s' AND pass='%s'",
mysql_escape_string($user), mysql_escape_string(md5($pass)));

mysql_select_db($database_config, $config);
$logged = mysql_query($login, $config) or die(mysql_error());

$row_user = mysql_fetch_array($logged);

if (mysql_num_rows($logged) == 0){
header (sprintf("Location: ../login.php"));
} else {
if ($remember){
setcookie("user", $user, time()+3600*24);
header (sprintf("Location: ../index.php"));
} else {
$_SESSION['user'] = $user;
header (sprintf("Location: ../index.php"));
}
}

?>

 

Ok i have solved the problem...