This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
I'm really confused as to what you are trying to accomplish.
Firstly, you are mixing JSTL, EL and scriptlets? Why the scriplets?
Secondly, you are trying to obtain request params in the same page as defines the form. In this case, the form hasn't even been displayed yet, so how can it have been submitted in order to generate the request params?