Dynamic SOAP clients

Hi,

I've been trying to write a dynamic soap client using J2EE's JAX-RPC
without a success.  The idea is that given the webservice's WSDL I can
dynamically construct SOAP calls from web page input.  There is a
similar thing for C++ out there, and you can see an exaple of what I am
trying to do here, http://www.soapclient.com/soaptest.html

However there is one additional catch, that the WSDL location is not
where the webservice is located.  Meanning that the webservice could be
instantiated on a different machine, and my "client" has to be able to
get the new address post constructing the calls for that webservice.

Many thanks,

M. Afifi