reindirizzare in base a lingua browser

[please]

Vorrei sapere se è possibile reidirizzare in base alla linhua primaria del browser e come si fa.

Grazie

[Longuflumini]

<script> 

var type=navigator.appName 
if (type=="Netscape") 
var lang = navigator.language 
else 
var lang = navigator.userLanguage 

//cut down to first 2 chars of country code 
var lang = lang.substr(0,2) 

// english 
if (lang == "en") 
window.location.replace('english.html') 

// german 
else if (lang == "de") 
window.location.replace('german.html') 

// spanish (add or remove copies of 2 lines below as needed) 
else if (lang == "es") 
window.location.replace('spanish.html') 

// if none of above (default to English or any other) 
else 
window.location.replace('english.html') 
</script> 
<!-- you can remove list below (reference only) 
af Afrikaans 
ar-ae Arabic (U.A.E.) 
ar-bh Arabic (Bahrain) 
ar-dz Arabic (Algeria) 
ar-eg Arabic (Egypt) 
ar-iq Arabic (Iraq) 
ar-jo Arabic (Jordan) 
ar-kw Arabic (Kuwait) 
ar-lb Arabic (Lebanon) 
ar-ly Arabic (Libya) 
ar-ma Arabic (Morocco) 
ar-om Arabic (Oman) 
ar-qa Arabic (Qatar) 
ar-sa Arabic (Saudi Arabia) 
ar-sy Arabic (Syria) 
ar-tn Arabic (Tunisia) 
ar-ye Arabic (Yemen) 
be Belarusian 
bg Bulgarian 
ca Catalan 
cs Czech 
da Danish 
de German (Standard) 
de-at German (Austria) 
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el Greek 
en English 
en English (Caribbean) 
en-au English (Australia) 
en-bz English (Belize) 
en-ca English (Canada) 
en-gb English (Great Britain) 
en-ie English (Ireland) 
en-jm English (Jamaica) 
en-nz English (New Zealand) 
en-tt English (Trinidad) 
en-us English (United States) 
en-za English (South Africa) 
es Spanish (Spain Modern) 
es Spanish (Spain Traditional) 
es-ar Spanish (Argentina) 
es-bo Spanish (Bolivia) 
es-cl Spanish (Chile) 
es-co Spanish (Colombia) 
es-cr Spanish (Costa Rica) 
es-do Spanish (Dominican Republic) 
es-ec Spanish (Ecuador) 
es-gt Spanish (Guatemala) 
es-hn Spanish (Honduras) 
es-mx Spanish (Mexico) 
es-ni Spanish (Nicaragua) 
es-pa Spanish (Panama) 
es-pe Spanish (Peru) 
es-pr Spanish (Puerto Rico) 
es-py Spanish (Paraguay) 
es-sv Spanish (El Salvador) 
es-uy Spanish (Uruguay) 
es-ve Spanish (Venezuela) 
et Estonian 
eu Basque 
fa Farsi 
fi Finnish 
fo Faeroese 
fr French (Standard) 
fr-be French (Belgium) 
fr-ca French (Canada) 
fr-ch French (Switzerland) 
fr-lu French (Luxembourg) 
gd Gaelic (Scotland) 
gd-ie Gaelic (Ireland) 
he Hebrew 
hi Hindi 
hr Croatian 
hu Hungarian 
in Indonesian 
is Icelandic 
it Italian (Standard) 
it-ch Italian (Switzerland) 
ja Japanese 
ji Yiddish 
ko Korean 
ko Korean (Johab) 
lt Lithuanian 
lv Latvian 
mk Macedonian 
ms Malaysian 
mt Maltese 
nl Dutch (Standard) 
nl-be Dutch (Belgium) 
no Norwegian (Bokmal) 
no Norwegian (Nynorsk) 
pl Polish 
pt Portuguese (Standard) 
pt-br Portuguese (Brazil) 
rm Rhaeto-Romanic 
ro Romanian 
ro-mo Romanian (Moldavia) 
ru Russian 
ru-mo Russian (Moldavia) 
sb Sorbian 
sk Slovak 
sl Slovenian 
sq Albanian 
sr Serbian (Cyrillic) 
sr Serbian (Latin) 
sv Swedish 
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sx Sutu 
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tr Turkish 
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uk Ukrainian 
ur Urdu 
ve Venda 
vi Vietnamese 
xh Xhosa 
zh-cn Chinese (PRC) 
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zh-sg Chinese (Singapore) 
zh-tw Chinese (Taiwan) 
zu Zulu 
-->