User Login for non vB pages

[ctg_croce]

I also want to know on my site if people are logged in (and are able to vote an things,...)
However if I use:

PHP Code:

<?
    echo "going for global.";
require ("board/global.php");
    echo "done with global.";

if ($bbuserinfo[userid] == 0) {
   echo "please log in!";
} else {
    echo "thanks for logging in.";
}
?>

All I see is "going for global."
I'm using vB 2.2.6
Anyone? I'm sure this is the right path to global.php

How do I keep the session-string when going from my forum to my site and back?

thanks!