<tr>
     <td>
      <strong class="col-md-3">L'OCS est-il maintenu ?</strong>
      <div class="col-md-3">
        <%= f.check_box :maintenance, label: "", :class => 'towatch' %>
      </div>
      <strong class="col-md-2">TMA</strong>
      <div class="col-md-3">
        <%= f.collection_select(:tma_id, Entity.all.order(:name), :id, :name, prompt: 'Choisissez une TMA', :class => 'toset', hide_label: true) %>
      </div>
    </td>
  </tr>

# Display if already checked
if $(".towatch:checked")
  $(".toset").toggle()

# Toggle on change
$(".towatch").change ->
  $(".toset").toggle()