dojo.__cookieProps.expires

dojo.require("dojo.cookie");
defined in dojo/cookie.js

If a number, the number of days from today at which the cookie will expire. If a date, the date past which the cookie will expire. If expires is in the past, the cookie will be deleted. If expires is omitted or is 0, the cookie will expire when the browser closes. << FIXME: 0 seems to disappear right away? FF3.