// Provide a default path to dwr.engine
if (dwr == null) var dwr = {};
if (dwr.engine == null) dwr.engine = {};
if (DWREngine == null) var DWREngine = dwr.engine;

if (ruler == null) var ruler = {};
ruler._path = '/dwr';
ruler.getWeather = function(callback) {
  dwr.engine._execute(ruler._path, 'ruler', 'getWeather', callback);
}