JSP model II, ajax, get response data
I created a channel by using JSP Model II type, in order to avoid effecting the whole page, I introduced the ajax, now connection to server and send request value are all successful, but the problem is how can I get the response data.
JSP Model II type of channel passes the data by session, if using ajax, after I click the Send button at the first time, the data is not show, then if you refresh the page, the session object can show in the page.
Does anybody have the experience for that? Thanks!

Additional info
What Javascript libraries (if any) are you using to do the AJAX call? If you manually hit query server you are trying to query does it return a response?
You best friend here is a Firefox extension called Firebug, which will show all requests leaving your machine, and the responses coming back.
If you post some sample code, mayby I can be of more assistance.