Form reset on reload?

First time post so I hope I get this right.
I have a jsp page in which I submit a form with two date string fields to a java delagate (using a session key) that obtains data from a Sybase DB.

The delegate returns a vector object back to the same jsp which loops through and displays it in a seperate form. However when the vector is returned the form's date fields reset back to default.

How can I retain the field's content during a session?