reload page causes re-insert

[kidbrax]

I have a page that shows the results after a user inserts a record into a table. If the page is reloaded, the record is inserted again, creating duplicates. How can I prevent this other than running a query to check for duplicates each time.?
I currently check to see if the user chose the submit button on the previous page so I know whether or not to insert the record. How can I make it so the script thinks they have not chosen it after the first time?

[stolzyboy]

well you could run a query to check for duplicates each time, i know you said you don't want to, but that is the easiest way