gistfile1.js

Gamepon.Widget.Timer = new Class({
  options: {
    actions: {
      timer: {
        enable: function() {
          var time = this.element.get('html').split(':');
          this.seconds = time[2].toInt() + (time[1] * 60).toInt() + (time[0] * 3600).toInt();
          this.decrementTime.periodical(1000, this);
        },
        disable: function() {
        }
      }
    }
  },
  
  decrementTime: function() {
    this.seconds--;
    var time = [];
    time[0] = (this.seconds / 3600).toInt();
    time[1] = ((this.seconds - time[0] * 3600) / 60).toInt();
    if (time[1] < 10) time[1] = '0' + time[1];
    time[2] = this.seconds - time[0] * 3600 - time[1] * 60;
    if (time[2] < 10) time[2] = '0' + time[2];
    this.element.set('html', time.join(':'));
  }
});