Functions for setting and checking cookies

cookie.js

function getCookie(name) {
  var matches = document.cookie.match(new RegExp(
    "(?:^|; )" + name.replace(/([\.$?*|{}\(\)\[\]\\\/\+^])/g, '\\$1') + "=([^;]*)"
  ));
  return matches ? decodeURIComponent(matches[1]) : undefined;
}
function setCookie(name, value, options) {
  options = options || {};
  var expires = options.expires;
  if (typeof expires == "number" && expires) {
    var d = new Date();
    d.setTime(d.getTime() + expires * 1000);
    expires = options.expires = d;
  }
  if (expires && expires.toUTCString) {
    options.expires = expires.toUTCString();
  }
  value = encodeURIComponent(value);
  var updatedCookie = name + "=" + value;
  for (var propName in options) {
    updatedCookie += "; " + propName;
    var propValue = options[propName];
    if (propValue !== true) {
      updatedCookie += "=" + propValue;
    }
  }
  document.cookie = updatedCookie;
}
if (!(getCookie("some-action") == 'done')) {
  // Start Action
  setCookie('some-action', 'done', {expires: 86400});
};