function switchLang(lang, infopage) {
	var url;
	url=escape(window.location.pathname);
	if (lang=="non_cn") {	
			url = url.replace(/\/cn\//g, "/en/");
	} else if (lang=="cn") {
		url=url.replace("/en/","/cn/");
	} 

	window.location=url;
}