public void readBackButton() {
		if (buttonCombi1 == 0 && buttonCombi2 == 1) {
			timePressed = System.currentTimeMillis();
		}
		while (buttonCombi1 == 0 && buttonCombi2 == 1) {
			checkInput();
			if ((System.currentTimeMillis() - timePressed) > 1000) {
				fastRewindSong = true;
			}
		}
		if ((System.currentTimeMillis() - timePressed) < 1000) {
			previousSong = true;
		} else {
			fastRewindSong = false;
		}

	}