var map = null;
    var geocoder = null;

    window.onload = function load() {
      if (GBrowserIsCompatible()) {
        map = new GMap2(document.getElementById("map"));
        map.setCenter(new GLatLng(43.542543,-5.661697999999995), 13);
        map.addControl(new GSmallMapControl());
        map.addControl(new GMapTypeControl());
        geocoder = new GClientGeocoder();
        showAddress('C/Los Moros, 41, Gijón, Asturias');
      }
    }

    function showAddress(address) {
      if (geocoder) {
        geocoder.getLatLng(
          address,
          function(point) {
            if (!point) {
              alert(address + " no encontrada");
            } else {
              map.setCenter(point, 15);
              var marker = new GMarker(point);
              map.addOverlay(marker);
              marker.openInfoWindowHtml(address);
            }
          }
        );
      }
    }