Как дописывать в массив куки

function getCookie(c_name) {
if (document.cookie.length>0) {
c_start=document.cookie.indexOf(c_name + "=");
if (c_start!=-1) {
c_start=c_start + c_name.length+1;
c_end=document.cookie.indexOf(";",c_start);
if (c_end==-1) c_end=document.cookie.length;
return unescape(document.cookie.substring(c_start,c_end));
} } return "";
}

function setCookie(c_name,value,expiredays) {
var exdate=new Date();
exdate.setDate(exdate.getDate()+expiredays);
document.cookie=c_name+ "=" +escape(value)+
((expiredays==null) ? "" : ";expires="+exdate.toGMTString());
}

var NotepadList = getCookie('notepad') ? getCookie('notepad') :'0';

if (NotepadList == '0') {
$('.notepad').addClass('off');
} else {
$('.notepad').removeClass('off');
$('.notepad').addClass('on');
$('.notepad ul').append(NotepadList);
};

function save_article(d1,d2) {
setCookie(d1,d2, 30);
location.reload();
}