// 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;

dwr.engine._defaultPath = '/whx/dwr';

if (ajax == null) var ajax = {};
ajax._path = '/whx/dwr';
ajax.call = function(p0, p1, p2, callback) {
  dwr.engine._execute(ajax._path, 'ajax', 'call', p0, p1, p2, callback);
}