process.html.erb

<div class="page-header"><h1>asdasd</h1></div>
<%= form_tag("go", method: "post", :remote => true, :class => 'form-horizontal') do %>
  <div class="control-group">
    <%= label_tag(:ids, "changeset ids", :class => 'control-label') %>
    <div class="controls">
      <%= text_area_tag :ids %>
    </div>
  </div>
  <div class="form-actions">
  <%= submit_tag("Go", :class => 'btn btn-primary') %>
  </div>
<% end %>