private void loadHighScores(Map<Integer, String> scores, int scoresPerCategory) throws IOException {
		String filename = getHighScoreFileName(scoresPerCategory);
		File highScoreFile = new File(filename);
		if(!highScoreFile.exists()) {
			highScoreFile.createNewFile();
		}
		Scanner scanner = new Scanner( new File(filename) );
		
		while(scanner.hasNext()) {
			int score = scanner.nextInt();
			String name = scanner.next();	
			scores.put(score, name);
		}
		
		scanner.close();
	}