// JavaScript Document

function set_cookie ( name, value, exp_y, exp_m, exp_d, path, domain, secure ) {
    var cookie_string = name + "=" + escape (value);
    if (exp_y) {
        var expires = new Date ( exp_y, exp_m, exp_d );
        cookie_string += "; expires=" + expires.toGMTString();
        }
    if (path) {
        cookie_string += "; path=" + escape (path);
        }
    if (domain) {
        cookie_string += "; domain=" + escape (domain);
        }
    if (secure) {
        cookie_string += "; secure";
        }
    document.cookie = cookie_string;
}

function get_cookie (cookie_name) {
  var results = document.cookie.match ( '(^|;) ?' + cookie_name + '=([^;]*)(;|$)' );
  if ( results ) return ( unescape ( results[2] ) );
      else return null;
}