Some simple cookie routines, in case needed later

cookie.js

function getCookies() {
  return document.cookie.split(/;\s*/).reduce(function (obj, s) {
    // NOTE: with different paths, cookies with same name can coexist… we ignore this
    var kv = s.split('=');
    obj[kv[0]] = decodeURIComponent(kv[1]);
    return obj;
  }, Object.create(null));
}

function setCookie(name, str) {
  document.cookie = [name, encodeURIComponent(str)].join('=') + "; path=/; max-age=31536000";
}

function unsetCookie(name) {
  document.cookie = name + "; path=/; max-age=0";
}

function getCookieJSON(k) { return JSON.parse(getCookies()[k] || "null"); }
function setCookieJSON(k, v) { setCookie(k, JSON.stringify(v)); }