uncaught exception: controls.js requires including script.ac

hi friends...

Ajax problem.... please help me. Ajax using delete the record

Browser Mozilla

my controller:

def delete     Book.find(params[:id]).destroy     redirect_to :action =>'book'   end

my view:

<%= link_to_remote (image_tag("../images/delete_bt.gif", :border => 0)),       :url =>{            :controller=>"book",            :action => 'delete',            :id => s.id},        :update=>"book#{s.id}",        :loading=>"status('book#{s.id}')" %>

Error.... uncaught exception: controls.js requires including script.aculo.us' effects.js library

Line 0

Looks to me like you need to include the script.aculo.us library, which is found in your public/javascripts/ folder. However, add this to the <head> of your application layout:

<%= javascript_include_tag :defaults %>

Then make sure that everything is in the javascripts folder.

forgot it.... Thanks a lot friend..

Now working fine....