WP: htaccess redirect reindirizzamento page in base languages in base alla lingua

gistfile1.txt

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{HTTP:Accept-Language} ^en [NC]
RewriteRule ^/?$ http://www.zendergroup.com/en/ [R,NC,L]
RewriteCond %{HTTP:Accept-Language} ^de [NC]
RewriteRule ^/?$ http://www.zendergroup.com/de/ [R,NC,L]
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress