using session_start() on a script - if there is no session it sets
one up; if there is a session, it opens it. If you wait too long
between pages it disposes the session automatically (set time for
session to keep alive in php.ini).

You need session_start() on all pages that needs to access the
$_SESSION array.

$_SESSION is just like an array variable, so if you want to segregate
data you could set a sub array of page data in $_SESSION...

$_SESSION['views'][1] = ...array of data...;

Hope that s
Larry