Interesting Problem (Sessions and Cookies)

Is there a way to store users input on *another* page (i use frames), in hidden fields, then be able to update those hidden fields as the user goes along, also, be able to extract that data when a user returns back to a previous form? I'm thinking of using this instead of Sessions or Cookies. Basically a blank page that will hold all the data from the input fields, allowing a user (should they need to go back, say, to form1 to make some changes, when they click submit, form2 will still contain the data they previously entered and will not be blank, as is normally the case.) Thanks Jason