private static String loadSiteUID(){
			String uid = DEFAULT_SITE_USER_ID;
			try{
				FileInputStream fis = new FileInputStream(workingDir + SITE_UID_FILE_NAME);
				try{
					BufferedReader reader = new BufferedReader(new InputStreamReader(fis));
					try {
						uid = reader.readLine();
					} catch (IOException e) {}
					reader.close();
				}
				catch (Exception e){}
				fis.close();
			} catch (Exception e){}
			return uid;
		}