function initialize() {
	var map = new GMap2(document.getElementById("google-map"));
	map.setMapType(G_HYBRID_MAP);
	map.setCenter(new GLatLng(centerX, centerY), mapZoom);
 	map.addControl(new GLargeMapControl());
	map.addControl(new GMapTypeControl());
	map.openInfoWindow(map.getCenter(), document.createTextNode(balloonText));
	for ( i=0; i<points.length; i++ ) {
		var point = new GLatLng(points[i][0], points[i][1]);
		map.addOverlay(new GMarker(point));
	}
	
}