Store Collection cells values (textboxe or dropdown values) in Session variable

Hi ,

I am looking to store widget values in Session, so that if browser refresh those values still i can see in textbox or dropdown.

FYI- here browser is refreshing every 10 mins, and while filling FORM browser may refresh automatically so i need to make user to resume his form filling where he had left filling before refresh of browser.

pls help me to achieve this.

Thanks,

Vaibhav