Javascript cookie delete

Question

If I create a cookie in Javascript document.cookie = \'unseen\' how do I delete it when I navigate away from this page? This is the only cookie I am creating on the

Answer 1

Set it it to expire to a time in the past. Function from http://techpatterns.com/downloads/javascript_cookies.php

function Delete_Cookie( name, path, domain ) {
    if ( Get_Cookie( name ) ) document.cookie = name + "=" +
      ( ( path ) ? ";path=" + path : "") +
      ( ( domain ) ? ";domain=" + domain : "" ) +
      ";expires=Thu, 01-Jan-1970 00:00:01 GMT";
}