function initialize(canvas, lat1, lat2, title) {
  if (GBrowserIsCompatible()) {
    var map = new GMap2(document.getElementById(canvas));
    map.setCenter(new GLatLng(lat1, lat2), 16);
    map.setUIToDefault();
    var point = new GLatLng(lat1, lat2);
    map.addOverlay(new GMarker(point));
    var riadok = document.createTextNode(title);
    map.openInfoWindowHtml(map.getCenter(), title);

  }
}