gistfile1.txt

function OnLoad() {
    try {
      var distances = [];

      if (google.loader.ClientLocation) {
        for (var i in cities) {
          lat1 = cities[i].lat;
          lon1 = cities[i].lng;

          dLat = (google.loader.ClientLocation.latitude - lat1).toRad();
          dLon = (google.loader.ClientLocation.longitude - lon1).toRad();
          a = Math.sin(dLat / 2) * Math.sin(dLat / 2) + Math.cos(lat1.toRad()) * Math.cos(google.loader.ClientLocation.latitude.toRad()) * Math.sin(dLon / 2) * Math.sin(dLon
          c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));·
          distances.push(r * c);
        }

        window.location = cities[Array.min(distances)].url;
      } else {
        window.location = cities[0].url;
      }
    } catch(err) {
      window.location = cities[0].url;
    }
  }

  google.setOnLoadCallback(OnLoad);