$q="update users set user_action_id=null where user_id='".$_SESSION['user_id']."'";
$db->query($q);
$logger->log('logout',$node['node_id'],'ok',$_SESSION['user_name']);
$q="update users set user_action_id=null where user_id='".$_SESSION['user_id']."'";
$db->query($q);
$logger->log('logout',$node['node_id'],'ok',$_SESSION['user_name']);