automatic serial/unserializing with sessions

Sessions do automatically serialize and unserialize it's variables? How is it done??... is it via session_register() that calls serialize() ?? and then session_start() unserializes it all? /* I'm just guessing here */ can someone explain me how does this work? _____________________________ . Christian Dechery . . Gaita-L Owner / Web Developer . . http://www.webstyle.com.br . . http://www.tanamesa.com.br