Handle Cookie in JQuery/Javascript

JQuery

function createCookie(cookiename, cookievalue) {

    $(document).ready(function () {

        $.cookie(cookiename, cookievalue, { path: '/' });

    });

}

function deleteCookie(cookiename) {

    $(document).ready(function () { 

         $.cookie(cookiename, null, { path: '/' }); 

    });

}

function readCookie(cookiename) {

    $(document).ready(function () {

          return $.cookie(cookiename, { path: '/' });

    });

}

Create file "jquery.cookie.js" using following code and include in page as script

/*!

* jQuery Cookie Plugin

* https://github.com/carhartl/jquery-cookie

*

* Copyright 2011, Klaus Hartl

* Dual licensed under the MIT or GPL Version 2 licenses.

* http://www.opensource.org/licenses/mit-license.php

* http://www.opensource.org/licenses/GPL-2.0

*/

(function ($) {

    $.cookie = function (key, value, options) {

        // key and at least value given, set cookie...

        if (arguments.length > 1 && (!/Object/.test(Object.prototype.toString.call(value)) || value === null || value === undefined)) {

            options = $.extend({}, options);

            if (value === null || value === undefined) {

                options.expires = -1;

            }

            if (typeof options.expires === 'number') {

                var days = options.expires, t = options.expires = new Date();

                t.setDate(t.getDate() + days);

            }

            value = String(value);

            return (document.cookie = [

                encodeURIComponent(key), '=', options.raw ? value : encodeURIComponent(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(''));

        }

        // key and possibly options given, get cookie...

        options = value || {};

        var decode = options.raw ? function (s) { return s; } : decodeURIComponent;

        var pairs = document.cookie.split('; ');

        for (var i = 0, pair; pair = pairs[i] && pairs[i].split('='); i++) {

            if (decode(pair[0]) === key) return decode(pair[1] || ''); // IE saves cookies with empty string as "c; ", e.g. without "=" as opposed to EOMB, thus pair[1] may be undefined

        }

        return null;

    };

})(jQuery)

Javascript

function readCookie(c_name) {

    var i, x, y, ARRcookies = document.cookie.split(";");

    for (i = 0; i < ARRcookies.length; i++) {

        x = ARRcookies[i].substr(0, ARRcookies[i].indexOf("="));

        y = ARRcookies[i].substr(ARRcookies[i].indexOf("=") + 1);

        x = x.replace(/^\s+|\s+$/g, "");

        if (x == c_name) {

            return unescape(y);

        }

    }

}

function createCookie(c_name, value, exdays) {

    var exdate = new Date();

    exdate.setDate(exdate.getDate() + exdays);

    var c_value = escape(value) + ((exdays == null) ? "" : "; expires=" + exdate.toUTCString());

    document.cookie = c_name + "=" + c_value;

}

function deleteCookie(c_name) {

    document.cookie = c_name + "=" + null;

}