// 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 (KeepAlive == null) var KeepAlive = {};
KeepAlive._path = '/cam/dwr';
KeepAlive.keepAlive = function(callback) {
  dwr.engine._execute(KeepAlive._path, 'KeepAlive', 'keepAlive', callback);
}