Extract notification logic into an object

I'm not sure if this is the right way to refactor javascript.
The same sort of refactoring needs to be done for Timer, but when I
tried it resulted in exceptions... I still need to learn OO in JS!
Make an expired timer look like a new timer

When there is no timer, the view displays the default time of 25:00
When the timer has finished, it displays 0:00
This change makes it display 25:00
Use AJAX instead of form submissions
Refactor to extract a Timer object
Fallback to alert() for non-webkit browsers
Version 1.0 complete!