function lang_link(lang){var strFullPath=window.document.location.href;//全路径
var strPath=window.document.location.pathname;//所在文件夹
var postPath=strPath.substring(0,strPath.substr(1).indexOf('/')+1);
if(lang=='en'){var urls=strFullPath.replace(postPath,postPath+"_en")}
if(lang=='cn'){
	var urlss=strFullPath.replace("%5Fen","");
	var urls=urlss.replace("_en","");}
var url=urls.replace("#","");
window.location.href=url;
}