<h1>Create new</h1>
  <%# Input field for @url_a %>
  <% url_a = "" %>
  <%= form_tag( url_a, :method => "get", :remote => true ) do %>
    <%= label_tag :url_a, "Enter url_a:" %>
    <%= text_field_tag :url_a, '', :size => 30, :onchange => "this.form.submit();" %>
    <% @url_a = params[:url_a] %>
  <% end %>

  <%# Input field for @url_b %>
  <% url_b = "" %>
  <%= form_tag( url_b, :method => "get", :remote => true ) do %>
    <%= label_tag :url_b, "Enter url_b:" %>
    <%= text_field_tag :url_b, '', :size => 30, :onchange => "this.form.submit();" %>
    <% @url_b = params[:url_b] %>
  <% end %>

<%= form_for(@auction) do |f| %>
  <% result_a = parse(@url_a) %>
  <% result_b = parse(@url_b) %>

  <b>Results</b>
  <div class="field">
    <%= f.label "price_a" %><br />
    <%= f.text_field :start_price, :value => result_a[:start_price], :size => "100" %>
  </div>
  <div class="field">
    <%= f.label "price_b" %><br />
    <%= f.text_field :start_price, :value => result_b[:start_price], :size => "100" %>
  </div>

  <div class="actions">
    <%= f.submit %>
  </div>
<% end %>