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

(function() {

	function f(n) {
		// Format integers to have at least two digits.
		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 = /[\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) {

		// If the string contains no control characters, no quote characters,
		// and no
		// backslash characters, then we can safely slap some quotes around it.
		// Otherwise we must also replace the offending characters with safe
		// escape
		// sequences.

		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) {

		// Produce a string from holder[key].

		var i, // The loop counter.
		k, // The member key.
		v, // The member value.
		length, mind = gap, partial, value = holder[key];

		// If the value has a toJSON method, call it to obtain a replacement
		// value.

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

		// If we were called with a replacer function, then call the replacer to
		// obtain a replacement value.

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

		// What happens next depends on the value's type.

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

		case 'number':

			// JSON numbers must be finite. Encode non-finite numbers as null.

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

		case 'boolean':
		case 'null':

			// If the value is a boolean or null, convert it to a string. Note:
			// typeof null does not produce 'null'. The case is included here in
			// the remote chance that this gets fixed someday.

			return String(value);

			// If the type is 'object', we might be dealing with an object or an
			// array or
			// null.

		case 'object':

			// Due to a specification blunder in ECMAScript, typeof null is
			// 'object',
			// so watch out for that case.

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

			// Make an array to hold the partial results of stringifying this
			// object value.

			gap += indent;
			partial = [];

			// Is the value an array?

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

				// The value is an array. Stringify every element. Use null as a
				// placeholder
				// for non-JSON values.

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

				// Join all of the elements together, separated with commas, and
				// wrap them in
				// brackets.

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

			// If the replacer is an array, use it to select the members to be
			// stringified.

			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 {

				// Otherwise, iterate through all of the keys in the object.

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

			// Join all of the member texts together, separated with commas,
			// and wrap them in braces.

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

	// If the JSON object does not yet have a stringify method, give it one.

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

			// The stringify method takes a value and an optional replacer, and
			// an optional
			// space parameter, and returns a JSON text. The replacer can be a
			// function
			// that can replace values, or an array of strings that will select
			// the keys.
			// A default replacer method can be provided. Use of the space
			// parameter can
			// produce text that is more easily readable.

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

			// If the space parameter is a number, make an indent string
			// containing that
			// many spaces.

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

				// If the space parameter is a string, it will be used as the
				// indent string.

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

			// If there is a replacer, it must be a function or an array.
			// Otherwise, throw an error.

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

			// Make a fake root object containing our value under the key of ''.
			// Return the result of stringifying the value.

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

	// If the JSON object does not yet have a parse method, give it one.

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

			// The parse method takes a text and an optional reviver function,
			// and returns
			// a JavaScript value if the text is a valid JSON text.

			var j;

			function walk(holder, key) {

				// The walk method is used to recursively walk the resulting
				// structure so
				// that modifications can be made.

				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);
			}

			// Parsing happens in four stages. In the first stage, we replace
			// certain
			// Unicode characters with escape sequences. JavaScript handles many
			// characters
			// incorrectly, either silently deleting them, or treating them as
			// line endings.

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

			// In the second stage, we run the text against regular expressions
			// that look
			// for non-JSON patterns. We are especially concerned with '()' and
			// 'new'
			// because they can cause invocation, and '=' because it can cause
			// mutation.
			// But just to be safe, we want to reject all unexpected forms.

			// We split the second stage into 4 regexp operations in order to
			// work around
			// crippling inefficiencies in IE's and Safari's regexp engines.
			// First we
			// replace the JSON backslash pairs with '@' (a non-JSON character).
			// Second, we
			// replace all simple value tokens with ']' characters. Third, we
			// delete all
			// open brackets that follow a colon or comma or that begin the
			// text. Finally,
			// we look to see that the remaining characters are only whitespace
			// or ']' or
			// ',' or ':' or '{' or '}'. If that is so, then the text is safe
			// for eval.

			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, ''))) {

				// In the third stage we use the eval function to compile the
				// text into a
				// JavaScript structure. The '{' operator is subject to a
				// syntactic ambiguity
				// in JavaScript: it can begin a block or an object literal. We
				// wrap the text
				// in parens to eliminate the ambiguity.

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

				// In the optional fourth stage, we recursively walk the new
				// structure, passing
				// each name/value pair to a reviver function for possible
				// transformation.

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

			// If the text is not JSON parseable, then a SyntaxError is thrown.

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