if (!this.JSON) {
JSON = function() {
function f(n) { return n < 10 ? '0' + n : n; }
Date.prototype.toJSON = function() {
return this.getUTCFullYear() + '-' +
f(this.getUTCMonth() + 1) + '-' +
f(this.getUTCDate()) + 'T' +
f(this.getUTCHours()) + ':' +
f(this.getUTCMinutes()) + ':' +
f(this.getUTCSeconds()) + 'Z';
}; var m = { '\b': '\\b', '\t': '\\t', '\n': '\\n', '\f': '\\f', '\r': '\\r', '"': '\\"', '\\': '\\\\' }; function stringify(value, whitelist) {
var a, i, k, l, r = /["\\\x00-\x1f\x7f-\x9f]/g, v; switch (typeof value) {
case 'string': return r.test(value) ? '"' + value.replace(r, function(a) {
var c = m[a]; if (c) { return c; }
c = a.charCodeAt(); return '\\u00' + Math.floor(c / 16).toString(16) +
(c % 16).toString(16);
}) + '"' : '"' + value + '"'; case 'number': return isFinite(value) ? String(value) : 'null'; case 'boolean': case 'null': return String(value); case 'object': if (!value) { return 'null'; }
if (typeof value.toJSON === 'function') { return stringify(value.toJSON()); }
a = []; if (typeof value.length === 'number' && !(value.propertyIsEnumerable('length'))) {
l = value.length; for (i = 0; i < l; i += 1) { a.push(stringify(value[i], whitelist) || 'null'); }
return '[' + a.join(',') + ']';
}
if (whitelist) { l = whitelist.length; for (i = 0; i < l; i += 1) { k = whitelist[i]; if (typeof k === 'string') { v = stringify(value[k], whitelist); if (v) { a.push(stringify(k) + ':' + v); } } } } else { for (k in value) { if (typeof k === 'string') { v = stringify(value[k], whitelist); if (v) { a.push(stringify(k) + ':' + v); } } } }
return '{' + a.join(',') + '}';
} 
}
return { stringify: stringify, parse: function(text, filter) {
var j; function walk(k, v) {
var i, n; if (v && typeof v === 'object') { for (i in v) { if (Object.prototype.hasOwnProperty.apply(v, [i])) { n = walk(i, v[i]); if (n !== undefined) { v[i] = n; } } } }
return filter(k, v);
}
if (/^[\],:{}\s]*$/.test(text.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']').replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) { j = eval('(' + text + ')'); return typeof filter === 'function' ? walk('', j) : j; }
throw new SyntaxError('parseJSON');
} 
};
} ();
}