To wrap Google around AJAX application

[Mass...@gmail.com]

Dear All,

Was wondering if anyone could resolve the issue am having here and it
would be much appreciated. Technically, am developing an AJAX
application (using Google WebTool kits) that invoke Google Search
service following a button click. I have no idea or even slight
knowledge of where to insert the google api class within my code. So
far, within my application i have 3 packages:

1. common - definition of the entry point class
2. common client - supporting classes
3. server - servlet class that answer any request

Should I add and declare my Google api class in the server package?
How do I link the button (actionListener) to invoke the Google search
service?