if (!Object.prototype.parseJSON) 
{
    (function (s) {
        var m = {
            '\b': '\\b',
            '\t': '\\t',
            '\n': '\\n',
            '\f': '\\f',
            '\r': '\\r',
            '"' : '\\"',
            '\\': '\\\\'
        };

        s.parseJSON = function (filter) {
            var j;

            function walk(k, v) {
                var i;
                if (v && typeof v === 'object') {
                    for (i in v) {
                        if (v.hasOwnProperty(i)) {
                            v[i] = walk(i, v[i]);
                        }
                    }
                }
                return filter(k, v);
            }

            if (/^("(\\.|[^"\\\n\r])*?"|[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t])+?$/.
                    test(this)) {
                try {
                    j = eval('(' + this + ')');
                } catch (e) {
                    throw new SyntaxError('parseJSON');
                }
            } else {
                throw new SyntaxError('parseJSON');
            }

            if (typeof filter === 'function') {
                j = walk('', j);
            }
            return j;
        };



    })(String.prototype);
}