Another web service proxy implementation instead of WebServiceProxyFactory

Hi,

Standart WebServiceProxyFactory have one big problem: I can't define 
callbacks for every call of every web service method, but I need to 
define one callback object during creating proxy for web service and 
before any call.

So it's make sense to write another proxy implementation. I must to call 
in in same manner:

var PeopleService = new 
WebService("http://localhost:8080/wsapp/services/PeopleService?wsdl", 
"PeopleService", createCallback);

WebService class must do:

1. Read all wsdl:operation for wsdl:portType = PeopleService
2. Create proxy methods for every wsdl:operation with same parameters + 
one parameter for call callback function

What do you think about it?

--
Thanks,
Eugene Prokopiev