set_cookie(): How to set "expires"? (vbulletin-core.js)

[BRotondi]

Hello

If I use set_cookie('name','value'), the value will expire after closing the session.

How can I set expire to 'never' or a day in the future? Tried around a while, but don't get it, even it seems to be simple.

vbulletin-core.js:

function set_cookie(name, value, expires)
{
console.log("Set Cookie :: %s = '%s'", name, value);
document.cookie = name + '=' + escape(value) + '; path=/' + (typeof expires != 'undefined' ? '; expires=' + expires.toGMTString() : '');
}

Thanks!
Bruno

--------------- Added [DATE]1288968572[/DATE] at [TIME]1288968572[/TIME] ---------------

Got it! - finally

vbulletin-sidebar.js

vBSidebar.prototype.save_collapsed = function(status)
{
expires = new Date();
expires.setTime(expires.getTime() + (1000 * 86400 * 365));
set_cookie('vbulletin_sidebar_collapse', status, expires);
}