A reusable set of cookie-related functions for JS. No need to use jQuery for something as simple as cookie management.

cookies.js

var cookies = (function(){

    return {

        create: function(name, value, days) {
            if (days) {
                var date = new Date();
                date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
                var expires = "; expires=" + date.toGMTString();
            } else {
                var expires = "";
            }
            document.cookie = name + "=" + value + expires + "; path=/";
        },

        read: function(name) {
            var nameEQ = name + "=";
            var ca = document.cookie.split(';');
            for (var i=0; i < ca.length; i++) {
                var c = ca[i];
                while (c.charAt(0) == ' ') {
                    c = c.substring(1, c.length);
                }
                if (c.indexOf(nameEQ) == 0) {
                    return c.substring(nameEQ.length, c.length);
                }
            }
            return null;
        },

        erase: function(name) {
            cookies.create(name, "", -1);
        }

    };

})();

cookies.min.js

var cookies=function(){return{create:function(e,t,n){if(n){var r=new Date;r.setTime(r.getTime()+n*24*60*60*1e3);var i="; expires="+r.toGMTString()}else{var i=""}document.cookie=e+"="+t+i+"; path=/"},read:function(e){var t=e+"=";var n=document.cookie.split(";");for(var r=0;r<n.length;r++){var i=n[r];while(i.charAt(0)==" "){i=i.substring(1,i.length)}if(i.indexOf(t)==0){return i.substring(t.length,i.length)}}return null},erase:function(e){cookies.create(e,"",-1)}}}()