if (!this.JSON) {
    JSON = {};
}
(function () {
    function f(n) {
	return n < 10 ? '0' + n : n;
    }
    if (typeof Date.prototype.toJSON !== 'function') {

	Date.prototype.toJSON = function (key) {

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

	String.prototype.toJSON =
	Number.prototype.toJSON =
	Boolean.prototype.toJSON = function (key) {
	    return this.valueOf();
	};
    }
    var cx = new RegExp('/[\\u0000\\u00ad\\u0600-\\u0604\\u070f\\u17b4\\u17b5\\u200c-\\u200f\\u2028-\\u202f\\u2060-\\u206f\\ufeff\\ufff0-\\uffff]/g');
    var escapable = new RegExp('/[\\\\\\"\\x00-\\x1f\\x7f-\\x9f\\u00ad\\u0600-\\u0604\\u070f\\u17b4\\u17b5\\u200c-\\u200f\\u2028-\\u202f\\u2060-\\u206f\\ufeff\\ufff0-\\uffff]/g'),
	gap,
	indent,
	meta = {    // table of character substitutions
	    '\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,          // The loop counter.
	    k,          // The member key.
	    v,          // The member value.
	    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');
	};
    }
}());