Your problem  is to create a program with database
facility.
you take a boolean for each page  and page (and its
data) can be visible on the basis of boolean value.
just jump from the one page to the other page
writing code for each page.
i presume you can do the work on database  and
table in html

there are couple of solutions to your problem.

---then they will forward  to another page  which they can do a search  and

---retrive data  which they request  and bring them forward to another
---page

1) U can merge this page with the applet  page so that when the user
makes some selection on the web page, u can store the data in some
hidden form fields and when he clicks on the SEARCH button u can
activate ur applet which picks up the data from the hidden fields and
processes it as per business logic

2) U can have a server side component which listens to the selections
user has made and then it passes these selections as a param values to
the applet thru html

both solutions do work.
let me know if there is any problem

What I have understood from your message , you get some informations
from user  (e.g. login  and password) and then retrieve  some data  from
database upon that parameters. Now you want the fechted data to be
sent to applet.

there are two solutions.

1) Connect your applet  with database, provide complete interface in
applet, user logins and get his data on the applet screen

2) Fetch data from database  using ASP,JSP etc and send it to applet
in form of parameter using <PARAM > tag.

if you still have any problem  let me help  you out.