function initialize() {
      if (GBrowserIsCompatible()) {
        var map = new GMap2(document.getElementById("map_canvas"));
	map.addMapType(G_PHYSICAL_MAP);
	map.setCenter(new GLatLng(49, 17), 5,G_PHYSICAL_MAP);
	map.addControl(new GLargeMapControl());
      	map.addControl(new GMapTypeControl());
      	map.addControl(new GScaleControl());
      	map.addControl(new GOverviewMapControl());
      	map.enableScrollWheelZoom();
	var marker = new GMarker(new GLatLng(49.854812,18.563812));
	map.addOverlay(marker);
	GEvent.addListener(marker, "mouseover", function() {
  		marker.openInfoWindowHtml("<font color='black' size=3>"+"QTH: OK2FUG"+"<hr>"+"LOC: JN99GU");
	});
	
	
      }
    }