RJS error I don't understand - multiple replace_html

The proper form of replace_html is:

page.replace_html dom_id, *render_options

In your case:

render :update do |page|
page.replace_html “reply-forward#{@reply_to.id}”, :partial => ‘empty’

end

Anything that isn’t recognized by the JavascriptHelper gets turned directly into Javascript (e.g. your update method).

Jason