jQuery is pure awesome.
An alternative is the Struts approach: it would be simple to have an action take the radio button input and forward to the appropriate JSP.
There are plenty of links to tutorials and documentation on our Struts FAQ page. If you are new to programming, your first step should be to familiarize yourself with the resources available and the basics of working with an API (be it Struts or jQuery or something else). You will save yourself a lot of grief in the long run if you build a strong foundation.