jQuery AJAX in Ruby on Rails

At the beginning, I thought it is worth to check this plugin out: http://jimneath.org/2008/06/18/using-jquery-with-ruby-on-rails/

And read this tutorial: http://devguru.pl/2008/12/09/rails-ajax-i-jquery/

It turned out, that jRails is a little bit outdated — it isn’t compatible with Rails ver. >1.9. However, I have found an excellent Railscast for newbies How to use jQuery with Rails?

Finally, I would like to strongly recommend you a little more advanced, detailed turorial for using jQuery in Rails 2.3 extra-easily: Beginners guide to jQuery Ruby on Rails by Nicolas Alpi. This is what I eventually decided to use as a base for AJAX functionality. Good luck!