var JSON;
if(!JSON) {
	JSON = {};
}

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

	if(typeof Date.prototype.toJSON !== 'function') {
		Date.prototype.toJSON = function() {
			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() {
			return this.valueOf();
		};
	}

	var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
		escapable = /[\\\"\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) {
						if(typeof rep[i] === 'string') {
							k = rep[i];
							v = str(k, value);
							if(v) {
								partial.push(quote(k) + (gap ? ': ' : ':') + v);
							}
						}
					}
				}
				else {
					for(k in value) {
						if(Object.prototype.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;
			default:
				throw 'Error in string to JSON conversion at value ' + value;
		}
	}

	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.prototype.hasOwnProperty.call(value, k)) {
							v = walk(value, k);
							if(v !== undefined) {
								value[k] = v;
							} else {
								delete value[k];
							}
						}
					}
				}
				return reviver.call(holder, key, value);
			}

			text = String(text);
			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');
		};
	}
}());