Back button keeps form info?

[Dolemite50]

Hello,
I have a page that allows people to customize it. When the page loads it pulls info out of the database to populate it.
<textarea name="descr" cols="25" rows="12" id="textarea4"><?php echo $descr ?>

What I am trying to accomplish is if somebody makes a mistake they get an error, they use the back button and the info remains.
At this point it will appear blank because the form tells it to load the variables into the form which are blank.

Any suggestions would be appreciated.

[LordShryku]

It's a hack, but I usually load the variables into a session on the handler page. Then on the form, check for the appropriate session variable and load it if it exists.