// 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 (Timer == null) var Timer = {};
Timer._path = '/b2c/dwr';
Timer.renew = function(callback) {
  dwr.engine._execute(Timer._path, 'Timer', 'renew', callback);
}