Reseting form controls

How would I reset the controls on a form? I have a few text fields and selection lists, and I want them cleared (text fields) or restored to the top value (the :prompt in the select). I tried the code below with render :update.

the form is in the view:

<% form_for :item, :html => { :id => 'items_form' } do |f| %> <%= f.text_field :name %> <%= f.select :available,      [['YES','true'],['NO','false']],      :prompt => '--Available?--' %>

<%= link_to_remote 'reset',      :update => 'items_list',      :url => { :action => 'reset_form' } %>

<% end %>

the action is in the controller:

def reset_form   render :update => do |page|     page['items_form'].reset # this, um, doesn't work   end end

I'm new in rails, so any help will be great.