private String readUrl(final String url) {
		try {
			String inputLine, output = "";
			BufferedReader reader = new BufferedReader(new InputStreamReader(new URL(url).openStream()));
			while ((inputLine = reader.readLine()) != null) {
				output += inputLine;
			}
			reader.close();
			return output;
		} 
		
		catch (IOException ex) {
			return null;
		}
	}