/* http://www.dustindiaz.com/top-ten-javascript/ */

        function getCookie(name) {
            var start = document.cookie.indexOf(name + "=");
            var len = start + name.length + 1;
            if ((!start) && (name != document.cookie.substring(0, name.length))) {
                return null;
            }
            if (start == -1) return null;
            var end = document.cookie.indexOf(';', len);
            if (end == -1) end = document.cookie.length;
            return unescape(document.cookie.substring(len, end));
        }

        function setCookie(name, value, expires, path, domain, secure) {
            var today = new Date();
            today.setTime(today.getTime());
            if (expires) {
                expires = expires * 1000 * 60 * 60 * 24;
            }
            var expires_date = new Date(today.getTime() + (expires));
            document.cookie = name + '=' + escape(value) +
		((expires) ? ';expires=' + expires_date.toGMTString() : '') + //expires.toGMTString()
		((path) ? ';path=' + path : '') +
		((domain) ? ';domain=' + domain : '') +
		((secure) ? ';secure' : '');
        }

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