estimancy/projestimate

<%= form_tag '/add_wbs_activity_to_project', :method => :post, :class => 'simple_form', :id => 'form_select_and_add_wbs_activity', :remote => true, :'data-update-target' => 'wbs_project_elements_section' do %>
    <p style="margin: 10px; ">
      <label>WBS-Activities</label>
      <%= select_tag 'wbs_activity_element', options_for_select(@wbs_activity_elements.map{|i| [i.name, i.id] } ), :prompt => I18n.t('helpers.select.prompt') %>
      <%= hidden_field_tag :project_id,  @project.id  %>
      <%= submit_tag 'ADD', :class => 'btn' %>
    </p>
<% end %>