int send;
  int receive;
  int link;

  sub init()
  {
  send=1;
  receive=2;
  return;
  }
  
  
  task main()
  {
  init();


  do
  {
  ClearMessage();
  while (Message()==0);
  receive=Message();
  PlayTone(100,20);

  } //do
  while (true);
  } //end main