private void copierFichier(String source, String destination) throws IOException {
	    FileInputStream fis = null;
	    FileOutputStream fos = null;

	    try {
	      byte buffer[] = new byte[1024];
	      int taille = 0;

	      fis = new FileInputStream(source);
	      fos = new FileOutputStream(destination);
	      while ((taille = fis.read(buffer)) != -1) {
	        fos.write(buffer, 0, taille);
	      }
	    } finally {
	      if (fis != null) {
	        try {
	          fis.close();
	        } catch (IOException e) {
	        }
	      }
	      if (fos != null) {
	        try {
	          fos.close();
	        } catch (IOException e) {
	        }
	      }
	    }
	}