function pageLanguage() {
	if (location.href.indexOf('/en/') != -1) {
		return 'en';
	}
	return 'es';
}

function saveLanguage() {
	var value = pageLanguage();
	
	var date = new Date();
	date.setTime(date.getTime() + (365 * 24 * 60 * 60 * 1000));
	
	document.cookie = 'lang=' + value + '; expires=' + date.toGMTString() + '; path=/';
}

window.onload = saveLanguage;