function switchLang(lang) {


	var url;
	url=unescape(window.location.pathname);


	if (lang=="non_en") {	
			url = url.replace("/en/", "/cn/");
	}	else if (lang=="en") {

		url= url.replace("/cn/","/en/");
	} 
	window.location=url;
	//alert(url);
}