set/get cookie using javascript(see also: https://developer.mozilla.org/en-US/docs/Web/API/Document/cookie/Simple_document.cookie_framework)
function setCookie(name, value, expdays, domain, path) {
// Example:
// setCookie('from', 'fzpzb01', 7, 'zlfund.cn', '/')
var exdate = new Date();
exdate.setDate(exdate.getDate() + expdays);
document.cookie = name + "=" + value + ";expires=" + exdate.toGMTString() + ";path=" + path + ";domain=" + domain;
}
function getCookie(name) {
var value = '; ' + document.cookie;
var parts = value.split('; ' + name + '=');
if (parts.length >= 2) {
return parts.pop().split(';').shift();
}
}