anchor.diff:      $('[name=destination\\[lat\\]]', row).val(destination.lat);
       $('[name=destination\\[lng\\]]', row).val(destination.lng);
       markers[destination_id].setLatLng(new L.LatLng(destination.lat, destination.lng));
  -    map.setView(markers[destination_id].getLatLng(), 16);
  +    if (!map.getBounds().contains(markers[destination_id].getLatLng())) {
  +      map.setView(markers[destination_id].getLatLng(), 16);
  +    }
     }
   
     function sendMove(id, latLng) {
  
positive.code:       } else {
          addMarker(destination.id, destination.lat, destination.lng);
        }
        map.setView(markers[destination.id].getLatLng(), 16);
      } else {
        delete markers[destination.id];
      }
  
negative.code:     // new over
      if (id in markers) {
        if (move) {
          if (!map.getBounds().contains(markers[id].getLatLng())) {
            map.setView(markers[id].getLatLng(), 16);
          }
        }
        markers[id].setIcon(icon_over);
        icon_over_stack.push(id);
  