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 = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
		escapeable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
		gap,
		indent,
		meta = {
			'\b': '\\b',
			'\t': '\\t',
			'\n': '\\n',
			'\f': '\\f',
			'\r': '\\r',
			'"' : '\\"',
			'\\': '\\\\'
		},
		rep;
	function quote(string){
		escapeable.lastIndex = 0;
		return escapeable.test(string) ?
			'"' + string.replace(escapeable, function (a) {
			var c = meta[a];
			if (typeof c === 'string') {
				return c;
			}
			return '\\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 (typeof value.length === 'number' &&
				!value.propertyIsEnumerable('length')) {
					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');
		};
	}
})();