if (!this.JSON) {
    this.JSON = {};
}

(function () {

    function f(n) {
        return n < 10 ? '0' + n : n;
    }

    //if (typeof Date.prototype.toJSON !== 'function') {

        Date.prototype.toJSON = function (key) {

            return isFinite(this.valueOf()) ?
                   this.getUTCFullYear()   + '-' +
                 f(this.getUTCMonth() + 1) + '-' +
                 f(this.getUTCDate())      + 'T' +
                 f(this.getUTCHours())     + ':' +
                 f(this.getUTCMinutes())   + ':' +
                 f(this.getUTCSeconds())   + 'Z' : null;
        };

        String.prototype.toJSON =
        Number.prototype.toJSON =
        Boolean.prototype.toJSON = function (key) {
            return this.valueOf();
        };
    //}

		var cx,escapable;
		cx = new RegExp('/[\\u0000\\u00ad\\u0600-\\u0604\\u070f\\u17b4\\u17b5\\u200c-\\u200f\\u2028-\\u202f\\u2060-\\u206f\\ufeff\\ufff0-\\uffff]/g');
		escapable = new RegExp('/[\\\\\\"\\x00-\\x1f\\x7f-\\x9f\\u00ad\\u0600-\\u0604\\u070f\\u17b4\\u17b5\\u200c-\\u200f\\u2028-\\u202f\\u2060-\\u206f\\ufeff\\ufff0-\\uffff]/g');

        var gap,
        indent,
        meta = {
            '\b': '\\b',
            '\t': '\\t',
            '\n': '\\n',
            '\f': '\\f',
            '\r': '\\r',
            '"' : '\\"',
            '\\': '\\\\'
        },
        rep;


    function quote(string) {

        escapable.lastIndex = 0;
        return escapable.test(string) ?
            '"' + string.replace(escapable, function (a) {
                var c = meta[a];
                return typeof c === 'string' ? c :
                    '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
            }) + '"' :
            '"' + string + '"';
    }


    function str(key, holder) {


        var i,
            k,
            v,
            length,
            mind = gap,
            partial,
            value = holder[key];


        if (value && typeof value === 'object' &&
                typeof value.toJSON === 'function') {
            value = value.toJSON(key);
        }


        if (typeof rep === 'function') {
            value = rep.call(holder, key, value);
        }


        switch (typeof value) {
        case 'string':
            return quote(value);

        case 'number':


            return isFinite(value) ? String(value) : 'null';

        case 'boolean':
        case 'null':


            return String(value);


        case 'object':


            if (!value) {
                return 'null';
            }


            gap += indent;
            partial = [];


            if (Object.prototype.toString.apply(value) === '[object Array]') {


                length = value.length;
                for (i = 0; i < length; i += 1) {
                    partial[i] = str(i, value) || 'null';
                }


                v = partial.length === 0 ? '[]' :
                    gap ? '[\n' + gap +
                            partial.join(',\n' + gap) + '\n' +
                                mind + ']' :
                          '[' + partial.join(',') + ']';
                gap = mind;
                return v;
            }


            if (rep && typeof rep === 'object') {
                length = rep.length;
                for (i = 0; i < length; i += 1) {
                    k = rep[i];
                    if (typeof k === 'string') {
                        v = str(k, value);
                        if (v) {
                            partial.push(quote(k) + (gap ? ': ' : ':') + v);
                        }
                    }
                }
            } else {


                for (k in value) {
                    if (Object.hasOwnProperty.call(value, k)) {
                        v = str(k, value);
                        if (v) {
                            partial.push(quote(k) + (gap ? ': ' : ':') + v);
                        }
                    }
                }
            }


            v = partial.length === 0 ? '{}' :
                gap ? '{\n' + gap + partial.join(',\n' + gap) + '\n' +
                        mind + '}' : '{' + partial.join(',') + '}';
            gap = mind;
            return v;
        }
    }


    //if (typeof JSON.stringify !== 'function') {
        JSON.stringify = function (value, replacer, space) {


            var i;
            gap = '';
            indent = '';


            if (typeof space === 'number') {
                for (i = 0; i < space; i += 1) {
                    indent += ' ';
                }


            } else if (typeof space === 'string') {
                indent = space;
            }


            rep = replacer;
            if (replacer && typeof replacer !== 'function' &&
                    (typeof replacer !== 'object' ||
                     typeof replacer.length !== 'number')) {
                throw new Error('JSON.stringify');
            }


            return str('', {'': value});
        };
    //}



    //if (typeof JSON.parse !== 'function') {
        JSON.parse = function (text, reviver) {


            var j;

            function walk(holder, key) {


                var k, v, value = holder[key];
                if (value && typeof value === 'object') {
                    for (k in value) {
                        if (Object.hasOwnProperty.call(value, k)) {
                            v = walk(value, k);
                            if (v !== undefined) {
                                value[k] = v;
                            } else {
                                delete value[k];
                            }
                        }
                    }
                }
                return reviver.call(holder, key, value);
            }



            cx.lastIndex = 0;
            if (cx.test(text)) {
                text = text.replace(cx, function (a) {
                    return '\\u' +
                        ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
                });
            }


            if (/^[\],:{}\s]*$/.
test(text.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@').
replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']').
replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) {


                j = eval('(' + text + ')');


                return typeof reviver === 'function' ?
                    walk({'': j}, '') : j;
            }


            throw new SyntaxError('JSON.parse');
        };
    //}
}());
