Memcache and session management

Hello every body, I am a french student, I am using memcache to manage sessions by the handler, but sometimes I want to manage their from PHP; for example, for incrementing one or two variables of an other session, I want to know how I can update an other session, if I know its name ? Thank you in advance _________________________________________________________________ Téléphonez gratuitement à tous vos proches avec Windows Live Messenger  !  Téléchargez-le maintenant ! http://www.windowslive.fr/messenger/1.asp