// appellation regions
var controlText ;
function CoordMapType(tileSize) {
this.tileSize = tileSize;
}

CoordMapType.prototype.getTile = function(coord, zoom, ownerDocument) {
var div = ownerDocument.createElement('DIV');
div.innerHTML = coord + " " + zoom;
div.style.width = this.tileSize.width + 'px';
div.style.height = this.tileSize.height + 'px';
div.style.fontSize = '10';
div.style.borderStyle = 'solid';
div.style.borderWidth = '1px';
div.style.borderColor = '#AA0000';
return div;
};

var WineOptions = {
getTileUrl: function(coord, zoom) {
return "http://static.gaultmillau.fr/images/maptiles/" + zoom + "_" + coord.x + "_" + coord.y + ".png";
},
tileSize: new google.maps.Size(256, 256),
isPng: true
};

var WineMapType=null;

function showHideAppellationTiles(map){
if(WineMapType==null){
WineMapType= new google.maps.ImageMapType(WineOptions);
map.overlayMapTypes.insertAt(0, WineMapType);
if(controlText!=null){controlText.style.fontWeight = 'bold';}
}else{
map.overlayMapTypes.removeAt(0);
WineMapType=null;
if(controlText!=null){controlText.style.fontWeight = 'normal';}
}
}

function AppellationControl(pdocument, map) {
  var appellationControlDiv = pdocument.createElement('DIV');
  // Set CSS styles for the DIV containing the control
  // Setting padding to 5 px will offset the control
  // from the edge of the map
  appellationControlDiv.style.padding = '5px';

  // Set CSS for the control border
  var controlUI = pdocument.createElement('DIV');
  controlUI.style.backgroundColor = 'white';
  controlUI.style.borderStyle = 'solid';
  controlUI.style.borderWidth = '2px';
  controlUI.style.cursor = 'pointer';
  controlUI.style.textAlign = 'center';
  controlUI.title = 'Appellations';
  appellationControlDiv.appendChild(controlUI);

  // Set CSS for the control interior
  controlText = document.createElement('DIV');
  controlText.style.fontFamily = 'Arial,sans-serif';
  controlText.style.fontSize = '12px';

  controlText.style.paddingLeft = '4px';
  controlText.style.paddingRight = '4px';
  controlText.innerHTML = 'Appellations';
  controlUI.appendChild(controlText);

  // Setup the click event listeners: simply set the map to
  // Chicago
  google.maps.event.addDomListener(controlUI, 'click', function() {
    showHideAppellationTiles(map);
  });


appellationControlDiv.index = 1;
map.controls[google.maps.ControlPosition.TOP_RIGHT].push(appellationControlDiv);
showHideAppellationTiles(map);
}