public String nextLevel(String s) {
		if (level == levels.level1) {
			level = levels.level2;
		} else if (level == levels.level2) {
			level = levels.level3;
		} else if (level == levels.level3) {
			level = levels.level4;
		} else if (level == levels.level4) {
			level = levels.level5;
		} else if (level == levels.level5) {
			level = levels.level6;
		} else if (level == levels.level6) {
			level = levels.level7;
		} else if (level == levels.level7) {
			level = levels.level8;
		} else if (level == levels.level8) {
			level = levels.level9;
		}
		return level;
	}