jQuery-Rooster!

Rooster is a simple countdown timer, with the explicit goal of keeping out the cruft.

Seconds Only

<div data-rooster-seconds=60 data-rooster-onComplete="alert('Timer complete!');"></div>

Seconds Only

<div data-rooster-seconds=60 data-rooster-includeMinutes="false" data-rooster-onComplete="alert('Timer complete!');"></div>