I have a JSP page called X.JSP (contains few radio button and submit button), when i hit the submit button in X.JSP, the next page is displayed Y.JSP?xxxx=1111&yyyy=2222&zzzz=3333

how to know what page or service or ajax call is being made when i hit the submit button in X.JSP page.
xxxx=1111&yyyy=2222&zzzz=3333 these are generated after i click the submit button in X.JSP

Currently i am using python to script.
i select a radio button and post the form. i am not able to get the desired O/P.
how do I what page or service or ajax call is being made when i hit the submit button in X.JSP page, so that i can directly hit that page
or is there any better way to solve this
The developers console ( F12 in Chrome and Firefox) is a wonderful thing. 
Check the Network or Net tab. There you can see all the requests between your browser and your server.
how to know what page or call is being when in a JSP page when submited