# Need help with a cookie

**URL:** <https://forum.kirupa.com/t/need-help-with-a-cookie/218586>\
**Category:** web dev\
**Created:** [March 9, 2007, 12:46am UTC](https://forum.kirupa.com/t/need-help-with-a-cookie/218586 "2007-03-09T00:46:13Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![somnamblst](https://avatars.discourse-cdn.com/v4/letter/s/a4c791/32.png) [@somnamblst](https://forum.kirupa.com/u/somnamblst)\
**Post date:** [March 9, 2007, 12:46am UTC](https://forum.kirupa.com/t/need-help-with-a-cookie/218586/1 "2007-03-09T00:46:13Z")

</div>

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

\<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() + 3600000_24_1);  
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\>