public void addCounter(Counter counter) {
		TimeSeries s1 = new TimeSeries(counter.getFullName());
		Map<Date, CounterValue> counterData = counter.getData();
		for (Iterator<Date> iter = counterData.keySet().iterator(); iter.hasNext(); ) {
			Date date = iter.next();
			s1.add(new FixedMillisecond(date), counterData.get(date).getDoubleValue());
		}
		addSeries(s1);		
	}