Connection Pooling

Hi,

I have two doubts.

1) I am building a web application which hasan SAP system as backend .The web application basically delivers a web front end for some of the underlying SAP transactions. The web application utilises the SAP JCO to call the backend BAPIs. Can I create a pool of RFC connections by supplying only a single userid and password and use that pool for multiple users logged into the web application.

2)In another case I decide to log in to the web application with an SAP userid and password ,user validation done against SAP backend. I would like to use these individual userids and passwords to create pooled connections to backend. Would this mean that if there are N users N pools needs be created .

Kindly clarify

Regards

Pran