$(document).ready(function() {
      if (GBrowserIsCompatible()) {
        var map = new GMap2(document.getElementById("map"));
        map.addControl(new GSmallMapControl());
        map.addControl(new GOverviewMapControl());
        map.addControl(new GMapTypeControl());
        map.setCenter(new GLatLng(53.621125, 11.27635), 7, G_NORMAL_MAP);

        // Creates a marker at the given point with the given number label
        function createMarker(point, info) {
        var marker = new GMarker(point);
        GEvent.addListener(marker, "click", function() {
        marker.openInfoWindowHtml(info);
        });
        return marker;
        }
        var point = new GLatLng(53.621125, 11.27635);
        map.addOverlay(createMarker(point, "<b>Jagdschule Gut Grambow</b><br />Lange Straße 16<br /> D-19071 Grambow<br /> "));
      }
});