public static void SaveLog(String tar, String errMsg){
    	File f = new File("D:\\Bingo_Document\\LogFile\\" + "log.text");
		try {
			FileWriter fw = new FileWriter(f,true);
			fw.write(tar + "\r\n");
			fw.write(errMsg + "\r\n");
			fw.write("\r\n");
			fw.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}