function startup() {
  var gmap = document.getElementById('gmap');
  if (gmap!=null) {
     if (GBrowserIsCompatible()) {
       var map = new GMap2(document.getElementById("gmap"));
       map.addControl(new GLargeMapControl());
       map.setCenter(new GLatLng(55.637474, 12.460681), 16);

       var icon = new GIcon();
       icon.image="http://landwehr.dk/headmark.png";
       icon.iconSize= new GSize(20, 32);
       icon.iconAnchor = new GPoint(10, 32);
       icon.infoWindowAnchor = new GPoint(9,1);
       var marker = new GMarker(new GLatLng(55.637474, 12.460681), icon);

       GEvent.addListener(marker, "click", function() {
         marker.openInfoWindowHtml("<b>My Home at:</b><br/>Bredholtvej 3<br/>DK 2650 Hvidovre");
       });
       map.addOverlay(marker);
       map.setMapType(G_HYBRID_MAP);
     }
  }
}

function shutdown() {
  GUnload();
}