... StickyForm -- state maintaining HTML forms . ... Forms can load and save their state to and . ... attribute, a save method and a restore method. state -- is a FormState instance which holds the default values . for all form elements. save -- tells the FormState instance to save itself to a file. restore -- tells the FormState instance to restore itself from a file. ... FieldStorage -- this sets the state of the form from the . ... with a FieldStorage instance, to create a form state which . ...