Problem with cookies – they just won’t go away.

Hi…
Can some one point out as to why my code does not work?
I’ve created some cookies like this:

[code]
var gotCookies = get_cookie(cookie_name);
var exdate = new Date();
exdate.setDate(exdate.getDate()+10);
if(gotCookies != null)
{
//var gotCookie = document.cookie.split(“; “);
//var old_selection = gotCookie[0].split(“, “);
var new_selection = cbId;
document.cookie = cookie_name+”=”+gotCookies + ‘,<‘ + escape(new_selection) + “>,expires=”+exdate.toGMTString() + ‘,path=/’;
}
else
{
// Write a new cookie
var new_selection = cbId;
document.cookie = cookie_name + ‘=<‘+escape(new_selection) + “>,expires=”+exdate.toGMTString() + ‘,path=/’;
}
[/code]

and when I run the “delete cookies” they don’t go away, only after I close the browser. I realize I set a 10 day life span,but if you delete them shouldn’t they go away? Here is how I delete them.

[code]
function delete_cookie(name)
{
document.cookie = name+’=””;expires=Fri, 14 Oct 2005 12:00:00 UTC;path=/’;
}
[/code]

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