Can I easily use jQuery or a plugin of jQuery that serializes the data in a form as a JSON instead of a "text string in standard URL-encoded notation"
jQueryを使用してフォームデータをJavaScriptオブジェクトに変換する
The json object can then be represented as string with JSON.stringify() function. For compatibility one can use https://github.com/douglascrockford/JSON-js/blob/master/json2.js