log off

www.delitiv.com/del2013/

-- HikaShop version -- : 2.2.1
-- Joomla version -- : 3.1.5
-- PHP version -- : 5.3.10
-- Browser(s) name and version -- : fire fox 23.0.1
-- Error-message(debug-mod must be tuned on) -- : Error_message

After login i would like to allow user to log off & login from the same pc as another user.
In some companies 2 customers are using the same pc & would like to login & logoff frm the same pc.
i could not find the way to logoff from hikashop & switch to a new user.
yoav

The joomla registration module gives the options not only to login & logoff but also to create new user account. this user account will be an hikashop user account but since the registration fileds are not the same ( hikashop has more/different/custome fileds than the joomla registration filed ) some info about the user will not be recorder when user register using joomla module for registration ( which is also used to login & logoff ) . so we have to ways to register users which are not the same !!

in addition i am using Jnews email extension for joomla. any joomla register user is automaticly become jnews email list member.

the bottom line is that:
I would like to have one registration form to hikashop joomla & jnews.
I would like every hikashop user will be register to jnews as well .
what should i do ?

thanks
yoav