function TestConnectionB(sURL, nTimeout)
	local oldTimeout = http.TIMEOUT
	http.TIMEOUT = (type(nTimeout)=="number") and nTimeout or http.TIMEOUT;
	local a,b,c = http.request({url=sURL, method="HEAD"});
	http.TIMEOUT = oldTimeout
	return (a==1) and true, a, b, c or false, b;
end