Caching forms in IE 5.5

When user hits back button to go back to a form

[Reflection]

When a user hits the back button to return to a form(ex: to fix an input error), how can you cache the field values in IE 5.5, so that the user doesnt have to retype everything?

For IE 6 this works:

header("Cache-control: private");

However it has no effect on IE 5.5

Thanks.

[vincevincevince]

Try storing them in cookies on the submit page, and on the form itself, have it try to load data from cookies... if cookies aren't there, then it won't load them.

[Reflection]

Thanks, I thought of something similar but I was hoping there was a simpler fix?