render :layout => false still renders

try this:

  render :text => @reversed_text, :layout => false

or with rjs

  render :update do |page|     page.replace_html "reversed", @reversed_text   end

the layout is more a thing "around" a template you render; views/ layouts/application.rhtml for example is the best place to put in your html <head/> tag

for the topic checkout the api-manual   ActionController::Base

or the best book about it :slight_smile:   http://www.pragmaticprogrammer.com/titles/rails/index.html