src/flipclock/js/libs/timer.js
function(callback) {
			var t = this;
	
			t._interval(callback);

			t.timer = setInterval(function() {		
				t._interval(callback);
			}, this.interval);
		}
function(callback) {
			var t = this;
	
			t._interval(callback);

			t.timer = setInterval(function() {		
				t._interval(callback);
			}, this.interval);
		}
function ( callback ) { var t = this ; t . _interval ( callback ) ; t . timer = setInterval ( function ( ) { t . _interval ( callback ) ; } , this . interval ) ; }
This sets the timer interval

@param 	callback  A function that is called once the timer is destroyed
@return	void
This sets the timer interval