public static void download(String urlString, String destFile) throws Exception
	{
		URL url = new URL(urlString);
		BufferedInputStream in = new BufferedInputStream(url.openStream());
		BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(destFile));
		byte buffer[] = new byte[BUFFER_SIZE];
		int bytesRead;
		while ((bytesRead = in.read(buffer)) != -1)
			out.write(buffer, 0, bytesRead);
		out.close();
		in.close();
	}