gistfile1.js

function initialize(){
  with(google.maps){

    // Let's query the geocoding service to set the bounds for the map
    var myOptions = {
      zoom: 8,
      mapTypeId: MapTypeId.ROADMAP
    };
    // The actual map
    var map = new Map(document.getElementById("map_canvas"), myOptions);

    var geocoder = new Geocoder();

    var origin, destination;

    geocoder.geocode({'address': 'Watertown, MA 02472', 'region':'us'}, function(result, status){
      origin = result[0].geometry.location; 
      geocoder.geocode({'address': 'Belmont, MA 02478', 'region':'us'}, function(result, status){
        destination = result[0].geometry.location; 
        // SHIT IS RIDIC :/
        var south_west = new LatLng(Math.min(origin.lat(), destination.lat()), Math.min(origin.lng(), destination.lng()));
        var north_east = new LatLng(Math.max(origin.lat(), destination.lat()), Math.max(origin.lng(), destination.lng()));
        var bounds = new LatLngBounds(south_west, north_east);
        map.fitBounds(bounds);
      });
    });

    // Renderer used for the overlays
    var renderer = new DirectionsRenderer({'preserveViewport':true});
    // Google Maps Directions Service provides the information
    // about directions and so forth
    var service = new DirectionsService();

    // Let's create a DirectionsRequest object to send to the DirectionsService
    var request = {
      'origin'      : 'Watertown, MA 02472', // FIXME: Seems overkill and not generic
      'destination' : 'Belmont, MA 02478', // FIXME: Seems overkill and not generic
      'travelMode'  : TravelMode.DRIVING,
      'region'      : 'us'
    };

    // Let's query the Google Maps Directions Service and process the result
    service.route(request, function(result, status){
      // For information about the status parameter of the callback
      // See http://goo.gl/2vg6H
      
      console.log(status);
      renderer.setDirections(result);
      renderer.setMap(map);
    });
  }
}