function load() {
	var map = new GMap2( document.getElementById( "map" ) );

	map.setCenter( new GLatLng( lat, lng ), zoom );

	var icon = new GIcon();
	icon.image = "http://maps.google.com/mapfiles/kml/pushpin/red-pushpin.png";
	icon.iconSize = new GSize( 30, 30 );
	icon.shadow = "http://www.google.com/mapfiles/shadow50.png";
	icon.shadowSize = new GSize( 40, 30 );
	icon.iconAnchor = new GPoint( 6, 20 );
	icon.infoWindowAnchor = new GPoint( 5, 1 );

	var point = new GLatLng( lat, lng );

	var mk = new GMarker( point, icon );
	map.addOverlay( mk );

	map.addControl( new GLargeMapControl() );	// 拡大縮小メニュー
	map.addControl( new GScaleControl() );		// 縮尺表示
	map.addControl( new GMapTypeControl() );	// 表示モード切替
}

onload = load;
onunload = GUnload;