// 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 = '/gfd';

if (CheckUser == null) var CheckUser = {};
CheckUser._path = '/gfd';
CheckUser.ifExists = function(p0, callback) {
  dwr.engine._execute(CheckUser._path, 'CheckUser', 'ifExists', p0, callback);
}