Ryan's quick Yahoo geocoder in as3

MapUtil.as

package candymaps.map
{
    import com.modestmaps.geo.Location;

    import flash.events.Event;
    import flash.net.URLLoader;
    import flash.net.URLRequest;

    public class MapUtil
    {
        private static var _yahoo_api_key:String;

        public static function setYahooApiKey(key:String):void
        {
            _yahoo_api_key = key;
        }

        public static function geocode(location:String, callback:Function):void
        {
            var loader:URLLoader = new URLLoader();
            loader.addEventListener(Event.COMPLETE, function(e:Event):void{
                try{
                    var response:XML = new XML(loader.data);
                    var ns:Namespace = new Namespace("urn:yahoo:maps");
                    callback(new Location(
                        response.ns::Result.ns::Latitude,
                        response.ns::Result.ns::Longitude
                    ));
                }
                catch(e:TypeError){
                    trace("Error Geocoding: Could not parse XML");
                }
            });
            loader.load(new URLRequest(
                "http://local.yahooapis.com/MapsService/V1/geocode?output=xml" +
                "&appid=" + _yahoo_api_key +
                "&location=" + location
            ));
        }
    }
}