private void close() {
			// try to close the connection
			try {
				if (sOutput != null)
					sOutput.close();
			} catch (Exception e) {
			}
			try {
				if (sInput != null)
					sInput.close();
			} catch (Exception e) {
			}
			;
			try {
				if (socket != null)
					socket.close();
			} catch (Exception e) {
			}
		}