refreshing an array

Hi All Thanks for the answer about the cookie issue. I have an array gather from a mysql db, which make a list to show clients no prob. You click on a message in the list sent by my clients customers and answer this message. No Prob there. But when i echo this list on the confirm reply page so they can get the next meesage it still shows the one just answered to. So how can i refresh this list. It work as it is which shows a message when replied and then my client clicks on get new messages but not when i call it on the replied page. All to save one click............. All help and guidence is most appreciated Dave C