JCO client

Hi,

I need to add this import to umLogonPage.jsp:

import com.sap.tc.webdynpro.services.sal.sl.api.*

Is it possible add webdynpro.service jar file to portal?

I need to connect to beckend system and call RFC from logon page but I can't use

JCO.createClient("100","user","pwd","language", host,sysnumber) because I need to get these information dynamically.

Then I try to use:

IWDJCOClientConnection mConnection2 = WDSystemLandscape.getJCOClientConnection("name_jco_connection");

mConnection = mConnection2.getClient();

and it works but what can I do the same thing from jsp????

Regards