do_login_redirect(); not working

[runnerjp]

Sorry it logs me in but does not stay logged in

--------------- Added [DATE]1333033066[/DATE] at [TIME]1333033066[/TIME] ---------------

Could it also be due to the fact that i redirect the user via javascript

PHP Code:

<?php
require_once('./global.php');
if ($vbulletin->userinfo['userid']!=0) {   
?>
<script type="text/javascript">
<!--
window.location = "forum.php";
//-->
</script>
<?
}
else
{?>
<script type="text/javascript">
<!--
window.location = "test.php?bd=1";
//-->
</script>
<?
}
?>