History and session

[usban]

I'm having problems qith my frames and my sessions.

I use sessions to make my site private if users are not registered, but when i abandon the private pages and return to the initial one if i use the button of the browser to go to the previous page i see the page. I use this code in the login page

<?
session_save_path( "..\session");
session_start();
session_destroy();
?>

and this one in all the private ones

session_save_path( "..\session");
session_start();

if(!$id){
header("location: login.php");
die();
}

[Nightfire]

login page

session_save_path( "../session");
session_start();
session_register("loggedin");

Pages to check user logged in use

session_save_path("../session");
session_start();
if(session_is_registered("loggedin"){
include("loggedinpage.php");
}else{
echo 'Not Logged In';
}

Then to log out

session_save_path( "../session");
session_start();
if(session_is_registered("loggedin")){
session_unregister("loggedin");
}


From what I can see, you've not registered a session, without one registered, it won't be secure.