Ok you are right I was looking in Server Behaviors.
I am still a little stuck here. I belief it would be best if there was a "Save Form For Later" button to set the Cookie instead of the "Submit"
2 reasons 1 - People will be confused thinking they are submitting the form and not saving it for later. 2- The client that receives the form will find it not completed, since when the form sends when submit is hit.
Another thing I am confused about. How does the form repopulate when the person returns? I see functions for Set Entire Form from Cookie. I have tried onReset, onBlur, with no luck.