Is it possible to get the display language from within ECMAScript? Similar to Get the current UI language from a webpart, I'd like to get the user's display language, however I want to access it with the Client Object Model in JavaScript (http://msdn.microsoft.com/en-us/library/ee538253.aspx). Is it somehow possible to access the System.Threading namespace? Or are there any other possibilities?

4 Answers 4


You have two easy ways to get the LCID in SP JavaScript

  1. var lcid =_spPageContextInfo.currentLanguage;
  2. var lcid = SP.Res.lcid;

Note that option 1 returns an int (i.e. 1033) and option 2 return a string (i.e. "1053").

  • Great, thanks a lot Wictor! Both are working perfectly!
    – Modery
    Nov 10, 2010 at 14:42
  • 1
    Great, Wictor! Is it possible to convert lcid to culture name in javascript? like 1033-> en-us, 1053 -> sv-se? Feb 16, 2012 at 15:44
  • 2
    Another option is to directly use the 'L_Menu_LCID' variable in page. More here: vrdmn.blogspot.in/2011/08/… Oct 29, 2012 at 16:54
  • 1
    _spPageContextInfo.currentUICultureName will give you en-US
    – Aslan
    Mar 13, 2018 at 20:18

In my case I needed to know the language before the SharePoint javascript libraries are loaded in order to hide elements before they are shown on the screen (not possible with _spBodyOnLoadFunctionNames).

Turns out SharePoint sets the lang attribute of the root HTML element according to the language and as a bonus it's already translated to the "en-us" format.

This is done with a simple call to document.getElementsByTagName('html')[0].getAttribute('lang')


Yet another ways to determine LCID in SP via JavaScript

1 Global variable g_wsaLCID:

var lcid = g_wsaLCID;

2 Language property of Web client object via CSOM (JavaScript)

function getWebLocale(complete) {

    var context = SP.ClientContext.get_current();
    var web = context.get_web();

                function(sender, args){
                    var lcid = web.get_language(); //returns LCID
                    return complete(lcid); 
                function(sender, args){

function printWebLanguageSettings(){ 
SP.SOD.executeOrDelayUntilScriptLoaded(printWebLanguageSettings, 'sp.js');

When using the Bing translation, the methods above didn't work (the values don't get updated when the language is changed).

What worked for me was


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