/*retrive with cookie*/
add_action(‘wp_head’,function(){
global $sublanguage;
?>
<script>
/*lang cookie*/
var d = new Date();
var expire = new Date(d.getFullYear(), d.getMonth(), d.getDate(), d.getHours()+2, d.getMinutes());
document.cookie = “lang=<?php echo $sublanguage->current_language->post_name; ?>; expires=”+expire+”; path=/”;
</script>
<?php
});