function logout()
{
global $valid_user;
$tmpuser = "";
/**
* first check if he/she is really
* logged in
*/
if (session_is_registered('valid_user')) {
$tmpuser = $_SESSION['valid_user'];
$res = session_unregister('valid_user');
session_destroy();
if ($res) {
dontRememberUser($tmpuser);
/**
* analytics code here
*/
$ans = new Analytics();
$ans->loggedOut($tmpuser);
return true;
} else {
return false;
}
} else {
return false;
}
}
