You can use a log file to log the time of the last post. /Why/ do you want to do this? Are you just worried about impatient people clicking the 'submit' button multiple times, eg a shopping cart's final 'buy' button? Maybe associate each POST/cart/basket with a unique ID, so the cart can only be bought once.
Alternatively, a solution to *help* against multi-clicks is to use JavaScript to disable the button after the first click. This solution is not a complete solution, because people can disable JavaScript, or manually re-enable the button, but it may be enough for your case. -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] http://learn.perl.org/