Setting persistent cookies with javascript

I changed your syntax over to my style of coding (variables at the top, minimal re-casting, etc.) and the example below works on my localhost quite well.

// Build the expiration date string:
var expiration_date = new Date();
var cookie_string = '';
expiration_date.setFullYear(expiration_date.getFullYear() + 1);
// Build the set-cookie string:
cookie_string = "test_cookies=true; path=/; expires=" + expiration_date.toUTCString();
// Create or update the cookie:
document.cookie = cookie_string;

If you are having problems on a production server, try setting the domain of the cookie as well (www.quirksmode.org/js/cookies.html#link5)

have you tried using the getFullYear() and setFullYear() methods of the Date instance instead of getYear() and setYear() ? the latter are are deprecated, see here.

hope that helps! cheers.

You can also use the max-age attribute.

cookie_string = "test_cookies=true; path=/; max-age=31536000";

• One week: max-age=604800
• One month: max-age=2628000
• One year: max-age=31536000