Need help with a cookie

programming web dev
1

I know nothing about cookies. I have an example I am trying to modify. It isn’t working :frowning:

<script language=“JavaScript” type=“text/javascript”>
window.onload = showbanner;
function showbanner() {
var cookie = getcookie(“sliding”);
//alert(cookie);
if(cookie)
{
document.getElementById(‘d1’).style.display = ‘none’;
}
else
{
document.getElementById(“d1”).style.display = ‘block’;
setTimeout(“zxcCngHeight(‘d1’,-2,10,200,10,true);”,7000);
var today = new Date();
var expire = new Date();
expire.setTime(today.getTime() + 3600000241);
document.cookie = “sliding=1;expires=”+expire.toGMTString();
}
}
function getcookie(cookiename) {
var cookiestring=""+document.cookie;
var index1=cookiestring.indexOf(cookiename);
if (index1==-1 || cookiename=="") return “”;
var index2=cookiestring.indexOf(’;’,index1);
if (index2==-1) index2=cookiestring.length;
return unescape(cookiestring.substring(index1+cookiename.length+1,index2));
}
</script>