Change default language in cookie

ChangeClientLanguage.js

var mySiteNamespace = {}
 
mySiteNamespace.switchLanguage = function (lang) {
    $.cookie('language', lang);
    window.location.reload();
}
 
$(document).ready(function () {
    // attach mySiteNamespace.switchLanguage to click events based on css classes
    $('.lang-english').click(function () { mySiteNamespace.switchLanguage('en'); });
    $('.lang-french').click(function () { mySiteNamespace.switchLanguage('fr'); });
    $('.lang-arabic').click(function () { mySiteNamespace.switchLanguage('ar'); });
    $('.lang-spanish').click(function () { mySiteNamespace.switchLanguage('es'); });
});