function setCookie(key, value, days, path, domain, secure) {
 value = encodeURIComponent(value);
 value+='; domain='+domain;
 value+='; path='+path;

 var date = new Date();
 date.setTime(date.getTime() + days * 24 * 60 * 60 * 1000);
 value+='; expires=' + date.toGMTString();
 if (secure) value+='; secure';
 document.cookie = key + '=' + value;
}