function setCookie(){
days=1; // number of days to keep the cookie
myDate = new Date();
myDate.setTime(myDate.getTime()+(days*24*60*60*1000));
document.cookie = 'auspackbanner=closed; expires=' + myDate.toGMTString();
}

function hideItem(){
   document.getElementById('top-banner').style.display = "none";
}