Element.toObject.js

Element.implement({
    toObject: function () {
        var obj = {}; 
        this.getElements('input, select, textarea, button').each(function(el){
            if (!el.name || el.disabled) return;
            var value = (el.tagName.toLowerCase() == 'select') ? Element.getSelected(el).map(function(opt){
                return opt.value;
            }) : ((el.type == 'radio' || el.type == 'checkbox') && !el.checked) ? null : el.value;
            $splat(value).each(function(val){
                if (typeof val !== "undefined") { obj[el.name] = val; }
            });
        });
        return obj;
    }
});