// MyMapTypeControl
					function MyMapTypeControl() {}
					MyMapTypeControl.prototype = new GControl();
					MyMapTypeControl.prototype.initialize = function(map) {
						var container = document.createElement("div");
						container.style.backgroundColor = "black";
						container.style.padding = "0px";
						container.innerHTML= 
							'<input style="font-size:9pt;" type="button" onclick="map.setMapType(G_NORMAL_MAP);" value="地圖 Map"/>'
							+'<input style="font-size:9pt;" type="button" onclick="map.setMapType(G_SATELLITE_MAP);" value="衛星 Satellite"/>'
							+'<input style="font-size:9pt;" type="button" onclick="map.setMapType(G_HYBRID_MAP);" value="混合 Hybrid"/>'
							+'<input style="font-size:9pt;" type="button" onclick="map.setMapType(G_PHYSICAL_MAP);" value="地形 Physical"/>';
						map.getContainer().appendChild(container);
						return container;
					}
					MyMapTypeControl.prototype.getDefaultPosition = function() {
						return new GControlPosition(G_ANCHOR_TOP_RIGHT, new GSize(4, 4));
					}
				//