I have built a simple chat box on my site, now when i type something into the text box and submit it everything works good but if i hit the refresh button on my browser it will keep inserting what i typed into the chat window.

So does anyone have any ideas how i can stop the refresh button from inserting the data over and over again?

Here's an old article I wrote that will get you started: http://www.teratask.com/index.php?pa...peat-submision