var user_language="null";
var browser_languages = ",en-us,zh-cn,zh-tw,";
var default_language = "en-us";

user_language = user_language.toLowerCase();
user_language = user_language.split(",")[0];
var help_language = default_language;
if (user_language=="zh-cn" || user_language.indexOf('zh-hans') != -1){
  help_language = "zh-cn";
}else if (",zh,zh-tw,zh-sg,zh-mo,zh-hk,".indexOf("," + user_language + ",")!=-1 || user_language.indexOf('zh-hant') != -1){
  help_language = "zh-tw";
}else if (user_language=="en" || user_language.indexOf("en-")!=-1){
  help_language = default_language;
}else{
  help_language = default_language;
}