Detects the language used by the client's browser

 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<HTML>

  <HEAD>
    <TITLE>JsLib 1.3 - Exemple - langue.js</TITLE>
    <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
    <META NAME="Author" CONTENT="Etienne CHEVILLARD">
    <!-- langue.js -->
    <SCRIPT TYPE="text/javascript" LANGUAGE="Javascript">
/* langue.js
 * Role : detecte la langue du navigateur du client
 * Projet : JsLib
 * Auteur : Etienne CHEVILLARD (echevillard@users.sourceforge.net)
 * Version : 1.3
 * Creation : 10/04/2001
 * Mise a jour : 23/02/2005
 */

// --- Variables globales ---

// tableau des codes ISO
var langue_tabct=new Array("aa","ab","af","am","ar","as","ay","az","ba","be",
  "bg","bh","bi","bn","bo","br","ca","co","cs","cy",
  "da","de","dz","el","en","eo","es","et","eu","fa",
  "fi","fj","fo","fr","fy","ga","gd","gl","gn","gu",
  "gv","ha","he","hi","hr","hu","hy","ia","id","ie",
  "ik","is","it","iu","ja","jw","ka","kk","kl","km",
  "kn","ko","ks","ku","kw","ky","la","lb","ln","lo",
  "lt","lv","mg","mi","mk","ml","mn","mo","mr","ms",
  "mt","my","na","ne","nl","no","oc","om","or","pa",
  "pl","ps","pt","qu","rm","rn","ro","ru","rw","sa",
  "sd","se","sg","sh","si","sk","sl","sm","sn","so",
  "sq","sr","ss","st","su","sv","sw","ta","te","tg",
  "th","ti","tk","tl","tn","to","tr","ts","tt","tw",
  "ug","uk","ur","uz","vi","vo","wo","xh","yi","yo",
  "za","zh","zu");

// tableau des langues en francais
var langue_tablg=new Array("Afar","Abkhaze","Afrikaans","Amharique","Arabe",
  "Assamais","Aymara","Az&eacute;ri","Bachkir","Bi&eacute;lorusse",
  "Bulgare","Bihari","B&ecirc;che-De-Mer","Bengali","Tib&eacute;tain",
  "Breton","Catalan","Corse","Tch&egrave;que","Gallois",
  "Danois","Allemand","Boutani","Grec","Anglais",
  "Esp&eacute;ranto","Espagnol","Estonien","Basque","Persan",
  "Finnois","Fidjien","F&eacute;ro&iuml;en","Fran&ccedil;ais","Frison",
  "Ga&eacute;lique Irlandais","Ga&eacute;lique &Eacute;cossais","Galicien","Guarani","Goudjarati",
  "Ga&eacute;lique de l'&Icirc;le de Man","Haoussa","H&eacute;breu","Hindi","Croate",
  "Hongrois","Arm&eacute;nien","Interlingua","Indon&eacute;sien","Interlingue",
  "Inupiak","Islandais","Italien","Inuktitut","Japonais",
  "Javanais","G&eacute;orgien","Kazakh","Groenlandais","Cambodgien",
  "Kannada","Cor&eacute;en","Cachemiri","Kurde","Cornique",
  "Kirghiz","Latin","Luxembourgeois","Lingala","Lao",
  "Lithuanien","Letton","Malgache","Maori","Mac&eacute;donien",
  "Malayalam","Mongol","Moldave","Marathe","Malais",
  "Maltais","Birman","Nauri","N&eacute;palais","N&eacute;erlandais",
  "Norv&eacute;gien","Occitan","Oromo","Oriya","Pendjabi",
  "Polonais","Pachto","Portuguais","Quechua","Rh&eacute;to-Roman",
  "Roundi","Roumain","Russe","Rouanda","Sanscrit",
  "Sindhi","S&aacute;mi Du Nord","Sango","Serbo-Croate","Cingalais",
  "Slovaque","Slov&egrave;ne","Samoan","Chona","Somali",
  "Albanais","Serbe","Siswati","Sotho Du Sud","Soundanais",
  "Su&eacute;dois","Souah&eacute;li","Tamoul","T&eacute;lougou","Tadjik",
  "Tha&iuml;","Tigrigna","Turkm&egrave;ne","Tagal","Setchwana",
  "Kitonga","Turc","Tsonga","Tatar","Tchi",
  "Ou&iuml;gour","Ukrainien","Ourdou","Ouzbek","Vietnamien",
  "Volap&uuml;k","Ouolof","Xhosa","Yidich","Yorouba",
  "Tchouang","Chinois","Zoulou");

// --- Fonctions ---

// retourne le code ISO de la langue du navigateur
function obtenirCodeLangueNavig() {
  var lct="en";
  if (navigator.language) {
    lct=navigator.language.toLowerCase().substring(0, 2);
  } else if (navigator.userLanguage) {
    lct=navigator.userLanguage.toLowerCase().substring(0, 2);
  } else if (navigator.userAgent.indexOf("[")!=-1) {
    var debut=navigator.userAgent.indexOf("[");
    var fin=navigator.userAgent.indexOf("]");
    lct=navigator.userAgent.substring(debut+1, fin).toLowerCase();
  }
  return lct;
} // fin obtenirCodeLangueNavig()

// retourne la langue en francais correspondant au code de langue specifie
function obtenirLangue(code) {
  if ((!code) || (code.length<2))
    return "";
  code=code.toLowerCase().substring(0, 2);
  for (var i=0; i<langue_tabct.length; i++) {
    if (langue_tabct[i]==code)
      return(langue_tablg[i]);
  }
  return "";
} // fin obtenirLangue(code)

// retourne la langue du navigateur en francais
function obtenirLangueNavig() {
  return (obtenirLangue(obtenirCodeLangueNavig()));
} // fin obtenirLangueNavig()

    </SCRIPT>
  </HEAD>

  <BODY>
    <H1>JsLib 1.3</H1>
    <HR>
    <H2>Exemple - langue.js</H2>

    <NOSCRIPT>
      <P><I>Erreur : votre navigateur ne reconna&icirc;t pas le Javascript ou est configur&eacute; pour ne
      pas prendre en compte le code Javascript. Dans ce dernier cas, vous pouvez modifier la
      configuration dans les pr&eacute;f&eacute;rences/options de votre navigateur.</I>
      <HR>
    </NOSCRIPT>

    <P>Code de la langue de votre navigateur :
      <SCRIPT TYPE="text/javascript" LANGUAGE="Javascript">document.write(obtenirCodeLangueNavig())</SCRIPT>

    <P>Langue de votre navigateur :
      <SCRIPT TYPE="text/javascript" LANGUAGE="Javascript">document.write(obtenirLangueNavig())</SCRIPT>

    <P>Langue pour un code de langue :
      <FORM ACTION="GET" NAME="f">
        <TABLE SUMMARY="formulaire" BORDER=0 CELLSPACING=2 CELLPADDING=2>
          <TR><TD>
            Code :
          </TD><TD>
            <INPUT NAME="t1" TYPE="text" SIZE="30" MAXLENGTH="2" VALUE="zu">
            <INPUT NAME="b1" TYPE="button" VALUE="Rechercher"
              onClick="this.form.t2.value=obtenirLangue(this.form.t1.value)">
          </TD></TR><TR><TD>
            Langue :
          </TD><TD>
             <INPUT NAME="t2" TYPE="text" SIZE="30" VALUE="">
          </TD></TR>
        </TABLE>
      </FORM>
      
  </BODY>
</HTML>

1.	Detects the browser, its version and the operating system of the client
2.	Indentify your browser
3.	Navigator:detect the client's browser
4.	More details about the client's browser
5.	All details about the client's browser
6.	Browser infomation
7.	Accessing the Properties of the navigator Object
8.	Writing Different Text to a Page Based on the Browser
9.	Navigator Object
10.	Using Navigator Properties
11.	Functions to Examine Browsers
12.	Get Browser version
13.	Methods and Properties of the Frame Object
14.	The Methods and Properties of the navigator Object
15.	Verify browser language
16.	Is cookie Enabled
17.	document.alinkColor
18.	document.lastModified
19.	document.title
20.	document.bgColor
21.	document.fgColor
22.	document.linkColor
23.	document.vlinkColor

Detects the language used by the client's browser : Browser Info « Window Browser « JavaScript DHTML

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