prevent form from being submitted over and over again?
i have created a forum site for our local community but it turns out that it is possible for people to post a message many times over by clicking back and then re submitting again which i need to prevent.
if anyone has any ideas how i can do this plz let me know as i need to get it back up and running soon as it was a very popular part of our site and do not want to lose the members because of this isue i have now found.
thanks in advance for your help.
oh and Merry Xmas...