private int getRand(String[] nr)
	{
		int ret = -1;
		int tries = 3;
		int rand = LangCoach.RANDOM.nextInt(nr.length + 1);
		for (int i = 0; i < tries; i ++)
		{
			if (rand == nr.length)
				break;
			
			if (nr[rand].equals("-"))
			{
				rand = LangCoach.RANDOM.nextInt(nr.length);
				continue;
			}
			ret = rand;
		}
		return ret;
	}