var map = null;
var geocoder = null;

function load() {
    if (GBrowserIsCompatible()) {
        map = new GMap2(document.getElementById("map_canvas"));
        map.setCenter(new GLatLng(37.4419, -122.1419), 13);
        map.addControl(new GSmallMapControl());
        geocoder = new GClientGeocoder();
    }
}



function showAddress(address, latitudine, longitudine) {

    if (latitudine != '' && longitudine != '') {

        map.setCenter(new GLatLng(latitudine - 0.0005, longitudine - 0.00010), 16);
        var bounds = map.getBounds();
        var southWest = bounds.getSouthWest();
        var northEast = bounds.getNorthEast();
        var lngSpan = northEast.lng() - southWest.lng();
        var latSpan = northEast.lat() - southWest.lat();
        var point = new GLatLng(latitudine, longitudine);
        var marker = new GMarker(point);
        map.addOverlay(marker);
        marker.openInfoWindowHtml('<small>' + address + '</small>');

    } else {


        if (geocoder) {
            geocoder.getLatLng(
		  address,
		  function(point) {
		      if (!point) {
		          //alert(address + " not found");
		      } else {
		          map.setCenter(point, 15);
		          var marker = new GMarker(point);
		          map.addOverlay(marker);
		          marker.openInfoWindowHtml('<small>' + address + '</small>');
		      }
		  }
		);
        }
    }
}