How to maintain session state in APEX

Hi friends,
I have a form with two page items and two buttons( submit ----->submits the page and inserts a record, cancel ------>redirects to other page)
*)p1_A
*)p2_B
If i entered a value in the page item p1_A and p2_A, and after that without pressing "Submit" Button im pressing "Cancel" button means it is redirecting to the other page and again if i came back to my form page means, the values that i entered in the page item
*)p1_A and p2_B is disappearing.
Is is possible to maintain a values entered in the page item (p1_A and p1_B) without submitting it and navigating to some other page.
Brgds,
Mini

Hi Peter,
Thanks for the reply.
Generally i have two page 1 and page 2
page 1 contains 2 page items
<li> P1_A
<li> P1_B
in the page 1 itself i have a list called po order.
If i clicked that list po order means, it is navigating to the page 2. My page 2 also contains below two items and a button BACK
<li> P2_A
<li> P2_B
After i entered the values in P2_A, P2_B and if i press the back button means, it is redirecting to the page 1. Again if i click the list po order means it is navigating to the page 2 but the values that i entered in P2_A, P2_B is disappeared.
Whether it is possible to maintain the values that i entered in the page items P2_A, P2_B soon after redirection. Mainly im not submitting page 2, just redirecting back to it.
settings to do that at the Button settingsAnd u said of doing that settings in the button that i have in page 2.
yes i found the option set items with the values
set item: P2_A with values: &P2_A.
But it didnt worked. Am i wrong.
Kindly help me with this issue peter.
Brgds,
Mini

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