public static boolean isNumber(String test) {
		if (test.startsWith("0") ||
		    test.startsWith("1") ||
		    test.startsWith("2") ||
		    test.startsWith("3") ||
		    test.startsWith("4") ||
		    test.startsWith("5") ||
		    test.startsWith("6") ||
		    test.startsWith("7") ||
		    test.startsWith("8") ||
		    test.startsWith("9")) 
			return true;
		else
			return false;
	}