window.setCookie = function (name, value, days) { let expires = ''; if (days) { let date = new Date(); date.setTime(date.getTime() + days * 24 * 60 * 60 * 1000); expires = '; expires=' + date.toUTCString(); } document.cookie = name + '=' + encodeURIComponent(value) + expires + '; path=/'; };