All attributes element jQuery

attributes.js

(function(old) {
    $.fn.attr = function() {
        if(arguments.length === 0) {
            if(this.length === 0) {
                return null;
            }

            var obj = {};
            $.each(this[0].attributes, function() {
                if(this.specified) {
                    obj[this.name] = this.value;
                }
            });
            return obj;
        }

        return old.apply(this, arguments);
    }
})($.fn.attr);