anchor.diff:      }
     );
   
  -  google.maps.event.addListener(marker, 'dragend', function() {
  -    for (var i = 0, I = markers.length; i < I && markers[i] != marker; ++i);
  -    path.setAt(i, marker.getPosition());
  -    dumbo[i] = marker.getPosition();
  -    }
  -  );
     google.maps.event.addListener(marker2, 'click', function() {
       marker.setMap(null);
       for (var i = 0, I = markers.length; i < I && markers[i] != marker; ++i);
  
positive.code:   var pt2 = new google.maps.LatLng(event.latLng.lat() + 0.03*stateSize, event.latLng.lng() -0.03*stateSize);
    var pt3 = new google.maps.LatLng(event.latLng.lat() - 0.03*stateSize, event.latLng.lng() -0.03*stateSize);
    var pt4 = new google.maps.LatLng(event.latLng.lat() - 0.03*stateSize, event.latLng.lng() +0.03*stateSize);
    path.insertAt(path.length, pt1);
    path.insertAt(path.length, pt2);
    path.insertAt(path.length, pt3);
    path.insertAt(path.length, pt4);
    
    var marker = new google.maps.Marker({
      position: pt1,
  
negative.code:     }
    );
  
  
    google.maps.event.addListener(marker4, 'click', function() {
      marker.setMap(null);
      for (var i = 0, I = markers.length; i < I && markers[i] != marker; ++i);
  