function map_initialize(container, address, zoom) {
		var map = null;
		var geocoder = null;

		// default zoom
		zoom = zoom || 13; 
		if (GBrowserIsCompatible()) {
	    			map = new GMap2(document.getElementById(container));

				map.setCenter(new GLatLng(37.4419, -122.1419), zoom);
				geocoder = new GClientGeocoder();
				if (geocoder) {
						geocoder.getLatLng(address, function(point) {
										if (point) {
												map.setCenter(point, 13);
												var marker = new GMarker(point);
												map.addOverlay(marker);
												marker.openInfoWindowHtml(address);
										}
								}
								);
				}
		}
}