custom map

if (GBrowserIsCompatible()) {
 
      var min = 0;
      var max = 12;
 
      //copyright
      var license = "<a href='http://www.maps-for-free.com/html/about.html' target='_blank'>License</a>";
      var copyright = new GCopyright(1, new GLatLngBounds(new GLatLng(-90, -180), new GLatLng(90, 180)), 0, license);
      var copyrightCollection = new GCopyrightCollection("Relief Maps: ");
      copyrightCollection.addCopyright(copyright);
 
      // Relief Map
      var relief = [new GTileLayer(copyrightCollection, min, max)];
      relief[0].getTileUrl = function(a,b) {
	return "http://maps-for-free.com/layer/relief/z" + b + "/row" + a.y + "/" + b + "_" + a.x + "-" + a.y + ".jpg"; };
      reliefLayer = new GMapType(relief, G_SATELLITE_MAP.getProjection(), "Relief", {minResolution:min, maxResolution:max});
 
      // Water Layer
      function getWaterLayer() {
	var layer = new GTileLayer(copyrightCollection, min, max);
	layer.getTileUrl = function (a,b) {
	  return "http://maps-for-free.com/layer/water/z" + b + "/row" + a.y + "/" + b + "_" + a.x + "-" + a.y + ".gif"; };
	return layer;
      }
 
      var map = new GMap2(document.getElementById("map"));
      map.setCenter(new GLatLng(37, 0), 4);
 
      // Add Water Layer
      waterLayer = new GTileLayerOverlay(getWaterLayer());
      map.addOverlay(waterLayer);
      waterLayer.visible = true;
 
      // Add Label Layer
//       labelLayer = new GTileLayerOverlay(G_HYBRID_MAP.getTileLayers()[1]);
//       map.addOverlay(labelLayer);
//       labelLayer.visible = true;
 
      map.addMapType(reliefLayer);
      map.addControl(new GLargeMapControl());
      map.addControl(new GOverviewMapControl());
      map.addControl(new GScaleControl());
 
      map.setMapType(reliefLayer);
 
      map.enableDoubleClickZoom();
      map.enableContinuousZoom();
      map.enableScrollWheelZoom();
 
 
 
    }
 
 
    // display a warning if the browser was not compatible
    else {
      alert("Sorry, the Google Maps API is not compatible with this browser");
    }