Form 2 JSON - jQuery Plugin

toJSON.js

$.fn.toJSO = function () {
    var obj = {},
        $kids = $(this).children('[name]');
    if (!$kids.length) {
        return $(this).val();
    }
    $kids.each(function () {
        var $el = $(this),
            name = $el.attr('name');
        if ($el.siblings("[name=" + name + "]").length) {
            if (!/radio|checkbox/i.test($el.attr('type')) || $el.prop('checked')) {
                obj[name] = obj[name] || [];
                obj[name].push($el.toJSO());
            }
        } else {
            obj[name] = $el.toJSO();
        }
    });
    return obj;
};