var CookieUtils = {

     get: function (name) {

         var cookieName = encodeURIComponent(name) + '=',

             cookieStart = document.cookie.indexOf(cookieName),

             cookieValue = null;

         if (cookieStart > -1) {

             var cookieEnd = document.cookie.indexOf(';', cookieStart);

             if (cookieEnd == -1) {

                 cookieEnd = document.cookie.length;

             }

             cookieValue = decodeURIComponent(document.cookie.substring(cookieStart + cookieName.length, cookieEnd));

         }

         return cookieValue;

     },

     set: function (name, value, expires, path, domain, secure) {

         var cookieText = encodeURIComponent(name) + "=" + encodeURIComponent(value);

         if (expires instanceof Date) {

             cookieText += "; expried=" + expires.toGMTString();

         }

         if (path) {

             cookieText += "; path=" + path;

         }

         if (domain) {

             cookieText += "; domain=" + domain;

         }

         if (secure) {

             cookieText += "; secure";

         }

         document.cookie = cookieText;

     },

     unset: function (name, path, domain, secure) {

         this.set(name, "", new Date(0), path, domain, secure);

     }

 }