function resetDomain(){
	var _wtkdomain = document.domain.split('.');
	var _wtknewdomain = document.domain;
	
	if (_wtkdomain.length > 1)
		_wtknewdomain = _wtkdomain[_wtkdomain.length - 2] + '.' + _wtkdomain[_wtkdomain.length - 1];
	document.domain = _wtknewdomain;
}