function getCookie( cookieName) 
{
    var start = document.cookie.indexOf(cookieName);
    if (start != -1)
    {
        start += cookieName.length + 1;
        var end = document.cookie.indexOf(';', start);

        if (end == -1) end = document.cookie.length;

        return unescape(document.cookie.substring(start, end));
    }
    else
    {
        return '';
    }

}

function saveCookie( cookieName, cookieValue, days) 
{
    if (days) {
        var date = new Date();
	date.setTime(date.getTime()+(days*24*60*60*1000));
	var expires = "; expires="+date.toGMTString();
    }
    else var expires = "";
    document.cookie = cookieName+"="+cookieValue+expires+"; path=/";
}