Get, Set and Delete Cookies

cookies.js

function getCookie(name) {
  var v = document.cookie.match('(^|;) ?' + name + '=([^;]*)(;|$)');
  return v ? v[2] : null;
}

function setCookie(name, value, days) {
  if(!days) var days = 365;
  var d = new Date;
  d.setTime(d.getTime() + 24*60*60*1000*days);
  document.cookie = name + "=" + value + ";path=/;expires=" + d.toGMTString();
}

function deleteCookie(name) { setCookie(name, '', -1); }