having the input information
permanently stored on the page
?
What
do you mean by that?
"sessions"
are a server concept.
The
server maintains some sort of persistent storage (database, flat
file, keystore, etc.) for a "session". Since HTTP is
session-less, though, you have to tie requests together into a
"session" using e.g. a cookie, a page parameter, etc.
And
there is normally nothing permanent about sessions. They normally
expire after some short time. (Perhaps hours - it's up to you.)