I´am searching for the same solution for a long time, and it seem to me the most basic thing for one control. Setting it to empty.
When you clear the form for the next record or a new one, who do one clear the fields?
As incredibel as it seem to be the most dificul thing to do. If You set 'value' to '' does noithing. If you set 'text' to '', well it sems to work, but only changes the display. Even if You use clear still doesn't work.
Please advise.