Переключение языка с cookie

	$(function(){ 
	$("#en-sw").click(function(){ 
   	jQuery('#fr-sw').removeClass("active"); 
   	jQuery('#en-sw').addClass("active");	 
	jQuery('.fr').hide();	 
	jQuery('.en').show();		 
	 
  }); 
   
  $("#fr-sw").click(function(){ 
   	jQuery('#en-sw').removeClass("active"); 
   	jQuery('#fr-sw').addClass("active");	 
	jQuery('.en').hide();	 
	jQuery('.fr').show();		 
	 
  }); 
 }); 
 
 
/*! 
 * jQuery Cookie Plugin v1.4.1 
 * https://github.com/carhartl/jquery-cookie 
 * 
 * Copyright 2006, 2014 Klaus Hartl 
 * Released under the MIT license 
 */ 
(function (factory) { 
	if (typeof define === 'function' && define.amd) { 
		// AMD (Register as an anonymous module) 
		define(['jquery'], factory); 
	} else if (typeof exports === 'object') { 
		// Node/CommonJS 
		module.exports = factory(require('jquery')); 
	} else { 
		// Browser globals 
		factory(jQuery); 
	} 
}(function ($) { 
 
	var pluses = /\+/g; 
 
	function encode(s) { 
		return config.raw ? s : encodeURIComponent(s); 
	} 
 
	function decode(s) { 
		return config.raw ? s : decodeURIComponent(s); 
	} 
 
	function stringifyCookieValue(value) { 
		return encode(config.json ? JSON.stringify(value) : String(value)); 
	} 
 
	function parseCookieValue(s) { 
		if (s.indexOf('"') === 0) { 
			// This is a quoted cookie as according to RFC2068, unescape... 
			s = s.slice(1, -1).replace(/\\"/g, '"').replace(/\\\\/g, '\\'); 
		} 
 
		try { 
			// Replace server-side written pluses with spaces. 
			// If we can't decode the cookie, ignore it, it's unusable. 
			// If we can't parse the cookie, ignore it, it's unusable. 
			s = decodeURIComponent(s.replace(pluses, ' ')); 
			return config.json ? JSON.parse(s) : s; 
		} catch(e) {} 
	} 
 
	function read(s, converter) { 
		var value = config.raw ? s : parseCookieValue(s); 
		return $.isFunction(converter) ? converter(value) : value; 
	} 
 
	var config = $.cookie = function (key, value, options) { 
 
		// Write 
 
		if (arguments.length > 1 && !$.isFunction(value)) { 
			options = $.extend({}, config.defaults, options); 
 
			if (typeof options.expires === 'number') { 
				var days = options.expires, t = options.expires = new Date(); 
				t.setMilliseconds(t.getMilliseconds() + days * 864e+5); 
			} 
 
			return (document.cookie = [ 
				encode(key), '=', stringifyCookieValue(value), 
				options.expires ? '; expires=' + options.expires.toUTCString() : '', // use expires attribute, max-age is not supported by IE 
				options.path    ? '; path=' + options.path : '', 
				options.domain  ? '; domain=' + options.domain : '', 
				options.secure  ? '; secure' : '' 
			].join('')); 
		} 
 
		// Read 
 
		var result = key ? undefined : {}, 
			// To prevent the for loop in the first place assign an empty array 
			// in case there are no cookies at all. Also prevents odd result when 
			// calling $.cookie(). 
			cookies = document.cookie ? document.cookie.split('; ') : [], 
			i = 0, 
			l = cookies.length; 
 
		for (; i < l; i++) { 
			var parts = cookies[i].split('='), 
				name = decode(parts.shift()), 
				cookie = parts.join('='); 
 
			if (key === name) { 
				// If second argument (value) is a function it's a converter... 
				result = read(cookie, value); 
				break; 
			} 
 
			// Prevent storing a cookie that we couldn't decode. 
			if (!key && (cookie = read(cookie)) !== undefined) { 
				result[name] = cookie; 
			} 
		} 
 
		return result; 
	}; 
 
	config.defaults = {}; 
 
	$.removeCookie = function (key, options) { 
		// Must not alter options, thus extending a fresh object... 
		$.cookie(key, '', $.extend({}, options, { expires: -1 })); 
		return !$.cookie(key); 
	}; 
 
}));

#fr-sw.active {font-weight:bold} 
#en-sw.active {font-weight:bold} 
.fr {display:none}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.2.0/jquery.min.js"></script> 
<a id="en-sw" class="active">Eng</a> 
<a id="fr-sw">Fr</a> 
 
<div class="en">на Английском</div> 
<div class="fr" style="display:none;">на Французском</div>