var map = null;
    var geocoder = null;

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

    function showAddress() {
      // Get from the HTML the postal code
      var address = document.getElementById('mappostalcode').innerHTML;
      var name = document.getElementById('maps_name').innerHTML;      
      if (geocoder) {
        geocoder.getLatLng(
          address,
          function(point) {
            if (!point) {
              alert(address + " not found");
            } else {
              map.setCenter(point, 13);
              var marker = new GMarker(point);
              map.addOverlay(marker);
              marker.openInfoWindowHtml( name + '<br>' + address);
            }
          }
        );
      }
    }