public static void Randomize(Object[] input) {
		if (input == null || input.length < 2) {
			return;
		}
		Random r = new Random();
		for (int i = input.length - 1; i > 0; i--) {
			int index = r.nextInt(i + 1);
			Object temp = input[i];
			input[i] = input[index];
			input[index] = temp;
		}
	}