[Zope] cashing formular field values

[Andrei Belitski]

Hello!
I dynamically create more form fields by calling a dtml method and then
returning (refreshing the formular document which displays more fields)
By doing it the previously introduced values of the fields disappear,
cause I create a new form page
Is there a possibility (may be a HTTP feature) to restore the values not
declaring and saving each value in a separate variable?
Thank you in advance
Andrei