function recup_lg() 
{ 
var lgr; 
if (verif_lg(navigator.userLanguage)) { lgr = verif_lg(navigator.userLanguage); } 
else if (verif_lg(navigator.systemLanguage)) { lgr = verif_lg(navigator.systemLanguage); } 
else if (verif_lg(navigator.browserLanguage)) { lgr = verif_lg(navigator.browserLanguage); } 
else if (verif_lg(navigator.language)) { lgr = verif_lg(navigator.language); } 
else { lgr = 'us'; }

return lgr; 
}

function verif_lg(lg_tmp) 
{ 
if(lg_tmp) 
{ 
if(lg_tmp.indexOf('en')!= -1) { return 'en'; } 
else if (lg_tmp.indexOf('en')!= -1) { return 'us'; } 
else if (lg_tmp.indexOf('fr')!= -1) { return 'fr'; } 
else if (lg_tmp.indexOf('es')!= -1) { return 'es'; } 
else { return ''; } 
} 
}

var lg_nav = recup_lg();

var url_redir;

if(lg_nav == 'en') { url_redir = 'en/company/company.html'; } 
else if (lg_nav == 'us'){ url_redir = 'en/company/company.html'; } 
else if (lg_nav == 'fr'){ url_redir = 'fr/compagnie/compagnie.html'; } 
else if (lg_nav == 'es'){ url_redir = 'en/company/company.html'; } 
else{ url_redir = 'http://website.com'; } 

window.location = url_redir;