function googlemap (lat,lon) {

   if (GBrowserIsCompatible()) {
      var mapdiv = document.getElementById("googlemap");

      if (mapdiv) {
         mapdiv.style.display = "block";
         var map = new GMap2(mapdiv);
         map.addControl(new GLargeMapControl());
         map.addControl(new GMapTypeControl());
         map.addControl(new GScaleControl()) ;
          map.addControl(new GOverviewMapControl(new GSize(100,100)));

         var mypoint = new GLatLng(lat, lon);
         map.setCenter(mypoint,14);

         var mymarker = new GMarker(mypoint);
         map.addOverlay(mymarker);
      }
   }

   return true;
}