Numeric Countdown? Help needed

Hi everyone!I need an idea on how to make a simple numeric countdown for my page.The countdown should go from e.g. 10 seconds, to zero.When the counter hits zero, a disabled button that is located on my page should be enabled. I have made something like this with a script that I have downloaded and modified, but it consisted of a simple progress bar.Unfortunately, the script only worked in Internet Explorer, but not in Firefox (although I have Java installed).This counter has to be textual - only a piece of text that looks like "Please wait... xx", where xx is the number that is counting down - decreasing.Is there a way to do this, but to make it compatible with all major browsers out there without lot's of add-ons?(To make things a little bit more clear, the counter should look like the one from http://forums.xisto.com/no_longer_exists/, but instead of revealing the download link, this script must enable my button)Nothing fancy, but functionality is my main priority!Any suggestions are welcome!