text: ﻿// usage
  // createCookie("myCookieUniqueName", value, 30);
  // createCookie("myJsonCookieUniqueName", json, 30);
  function createCookie(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=/";
  }
  
  // usage
  // var value = readCookie("myCookieUniqueName");
  // var json = JSON.parse(readCookie("myJsonCookieUniqueName");
  function readCookie(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;
  }
  
  function eraseCookie(name) {
      createCookie(name, "", -1);
  }