Cookie module for requirejs

cookie.js

/**
 * Cookie module for requirejs
 */
/*jslint browser: true, vars: true, white: true, forin: true, sloppy: true */
/*global define, require */
define({
    createCookie : function(name,value,days) {
        var expires;
        if (days) {
            var date = new Date();
            date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
            expires = "; expires=" + date.toGMTString();
        }
        else {
            expires = "";
        }
        document.cookie = name+"="+value+expires+"; path=/";
        return true;
    },
    eraseCookie : function(name) {
        this.createCookie(name,"",-1);
        return true;
    },
    readCookie : function(name) {
        var i, nameEQ = name + "=",
            ca = document.cookie.split(';');
        for(i=0;i < ca.length;i+=1) {
            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;
    }
});