How are Countdown Counter Things made?

[kali]

I need a few made, and i don't mind buying them, but I'm just curious as to how people make them? Is it all php or coding or something like that? Or is it made in flash or something like that?

I'm clueless.

Thanks in advance to whoever can help me out.

[mytam]

It's a javascript if that's what you mean:

http://java-scripts.net/javascripts/Countdown-Timer.phtml

or this one

http://www.hashemian.com/tools/javascript-countdown.htm

[kali]

Thanks for the links, Mytam