code: function() {
  
  		var time = new Date().getTime(),
  			i = 0,
  			count = this._active_tasks.length,
  			task,
  			active_tasks = [];
  
  		for (; i < count; i++) {
  
  			task = this._active_tasks[i];
  
  			if (task.isRunning()) {
  				task.onTimer(time);
  				// note: at this moment task may be already off, but it's not checked - to save processor resources.
  				active_tasks.push(task);
  			}
  
  		}
  
  		if (!active_tasks.length) {
  
  			this.is_running = false;
  
  		}
  
  		this._active_tasks = active_tasks;
  
  	}
docs: Call {@link Lava.animation.Abstract#onTimer} of all animations