serialize form to json

gistfile1.txt

(function ($) {

    $.fn.serializeJSON = function () {
        var json = {}
        var form = $(this);
        form.find('input, select').each(function () {
            var val
            if (!this.name) return;

            if ('radio' === this.type) {
                if (json[this.name]) { return; }

                json[this.name] = this.checked ? this.value : '';
            } else if ('checkbox' === this.type) {
                val = json[this.name];

                if (!this.checked) {
                    if (!val) { json[this.name] = ''; }
                } else {
                    json[this.name] =
                      typeof val === 'string' ? [val, this.value] :
                      $.isArray(val) ? $.merge(val, [this.value]) :
                      this.value;
                }
            } else {
                if (this.value != "") {
                    json[this.name] = this.value;
                }
            }
        })
        return json;
    }

})(jQuery)