lang = location.pathname

	idx = lang.lastIndexOf(".")
	lang = lang.substring(0, idx)
	idx = lang.lastIndexOf(".")
	lang = lang.substring(idx+1)
	if (lang.indexOf("/") >= 0 || lang.length != 2) {
		lang = 'en'		// defaults to 'en'
	}

	passpage = document.URL 
	if (top.location == self.location) {  // i.e., we are not part of frameset
		top.location.href="/master2.html?lang=" + lang + "&URL=" + passpage 
	}