Creating signed java applet to set third party cookies

I'd like to create a signed java applet with the following functionality: We have part of our site that has free information. In order to see it, we want to store some third party cookies. 1. The user should see a certificate that it can accept or decline 2. When accepted, the applet stores about 8 THIRD PARTY cookies in browser. This should work for both IE and FireFox 3. Also a cookie of our self is stored when succesfull 4. When cookie found, user has right to view the free information. I think this a project which will be quite possible, we are willing to pay for good work and speed of implementation.