This is my "link":

```
%span{:id => "car_#{car.id}", :onclick => "add_car(#{car.id}"} Add

```

that leads on to here:

```
function add_trending(car_id) {
  jQuery.ajax({
    url: "/cars/add_car",
    type: "GET",
    data: {"car_id" : car_id},
    dataType: "html"
  });
}

```

in controller:

```
  def add_car   
    @car = Car.find(params[:car_id])
    ...

    respond_to do |format|
      format.js
    end
  end

```

and **add\_car.js.erb**:

```
alert("YES");

```

But the alert window is not popped up. When I take a look at logs, I see there following:

```
Rendered cars/add_car.js.erb (0.0ms)

```

The javascript is just rendered, not executed based on logs. How is that possible?

Thanks