function initialize() {
  var chicago = new google.maps.LatLng(44.1448,10.663727);
  var mapOptions = {
    zoom: 11,
    center: chicago
  }

  var map = new google.maps.Map(document.getElementById('map_canvas'), mapOptions);

  var ctaLayer = new google.maps.KmlLayer({

url: '/kml/snowpark.txt'

  });
  ctaLayer.setMap(map);
}

google.maps.event.addDomListener(window, 'load', initialize);