cookie.js

/* JavaScript Cookie */

function CookieHandler() {}

CookieHandler.prototype.setCookie = function (name, value, seconds) {
  if (typeof seconds !== 'undefined') {
    var date = new Date()
    date.setTime(date.getTime() + (seconds * 1000))
    var expires = '; expires=' + date.toGMTString()
  } else {
    var expires = ''
  }

  document.cookie = `${name}=${value}${expires}; path=/`
}

CookieHandler.prototype..getCookie = function (name) {
  name += '='
  var carray = document.cookie.split(';')

  for (var i=0; i < carray.length; i++) {
    var c = carray[i]
    while (c.charAt(0) === ' ') {
      c = c.substring(1, c.length)
    }
    if (c.indexOf(name) === 0) {
      return c.substring(name.length, c.length)
    }
  }

  return null
}

CookieHandler.prototype.deleteCookie = function (name) {
  this.setCookie(name, '', -1)
}