var odoc = location.pathname
var ohost = location.hostname
// document.write("http://" + ohost + odoc)
function chgLang() {
	if (odoc.indexOf("/en/") !=-1)
	{ var ndoc = odoc.replace('/en','/fr');
	} else {var ndoc = odoc.replace('/fr','/en');
	}
var fdoc = "http://" + ohost + ndoc
location.href=fdoc
}