/**
 * Read the JavaScript cookies tutorial at:
 *   http://www.netspade.com/articles/javascript/cookies.xml
 */

/**
 * Sets a Cookie with the given name and value.
 *
 * name       Name of the cookie
 * value      Value of the cookie
 * [expires]  Expiration date of the cookie (default: end of current session)
 * [path]     Path where the cookie is valid (default: path of calling document)
 * [domain]   Domain where the cookie is valid
 *              (default: domain of calling document)
 * [secure]   Boolean value indicating if the cookie transmission requires a
 *              secure transmission
 */
function setCookie(name, value, expires, path, domain, secure)
{
    document.cookie= name + "=" + escape(value) +
        ((expires) ? "; expires=" + expires.toGMTString() : "") +
        ((path) ? "; path=" + path : "") +
        ((domain) ? "; domain=" + domain : "") +
        ((secure) ? "; secure" : "");
}

/**
 * Gets the value of the specified cookie.
 *
 * name  Name of the desired cookie.
 *
 * Returns a string containing value of specified cookie,
 *   or null if cookie does not exist.
 */
function getCookie(name)
{
    var dc = document.cookie;
    var prefix = name + "=";
    var begin = dc.indexOf("; " + prefix);
    if (begin == -1)
    {
        begin = dc.indexOf(prefix);
        if (begin != 0) return null;
    }
    else
    {
        begin += 2;
    }
    var end = document.cookie.indexOf(";", begin);
    if (end == -1)
    {
        end = dc.length;
    }
    return unescape(dc.substring(begin + prefix.length, end));
}

/**
 * Deletes the specified cookie.
 *
 * name      name of the cookie
 * [path]    path of the cookie (must be same as path used to create cookie)
 * [domain]  domain of the cookie (must be same as domain used to create cookie)
 */
function deleteCookie(name, path, domain)
{
    if (getCookie(name))
    {
        document.cookie = name + "=" + 
            ((path) ? "; path=" + path : "") +
            ((domain) ? "; domain=" + domain : "") +
            "; expires=Thu, 01-Jan-70 00:00:01 GMT";
    }
}


function ezCookie()
{
  var co = getCookie("ezht");
  if(co) {
    // document.write('co = ' + co + ', len = ' + co.length + '<br>');
  }
  else {
    var t = new Date();                // today's date and time
    var m = t.getTime();               // current time in milliseconds
    var d = m + (3600*24*365*2*1000);  // 2 years in milliseconds
    var e = new Date(d);               // expiration date, today + 2 years
    var r = new String(m);             // current time in string form
    var p = r.substring(8,13);         // last 5 digits of current time
    var s = new String(t);             // today's date in string form
    var a = s.split(" ");              // split on spaces      
        
    // var s = "Thu Sep 23 17:13:20 EST 2005"; 
    // want n to look like Sep_23_17:13:20_23323

    var n = a[1] + '_' + a[2] + '_' + a[3] + '_' + p; // create cookie val

    // document.write('Must set cookie to ' + n + ' ex=' + e + '<br>');
    setCookie("ezht", n, e);
  }
}