$rec=$this->db->queryOneRecord("SELECT * FROM sys_session WHERE session_id = '".$this->db->quote($session_id)."'");
if($this->timeout>0){
$rec=$this->db->queryOneRecord("SELECT * FROM sys_session WHERE session_id = '".$this->db->quote($session_id)."' AND last_updated >= DATE_SUB(NOW(), INTERVAL ".intval($this->timeout)." MINUTE)");
}else{
$rec=$this->db->queryOneRecord("SELECT * FROM sys_session WHERE session_id = '".$this->db->quote($session_id)."'");