openproject/app/views/cost_reports/_group_by_item.rhtml

<% id = "group_by_" + name -%>
<tr id="<%= id %>">
  <td style="width: 200px">
    <%= link_to_function(image_tag('delete.png'), "$('#{id}').remove(); toggle_options($('add_group_by_select'), '#{name}', 'enable')") %>
    <%= label %>
    <input type="hidden" name="group_by[]" value="<%= name %>" />
  </td>
  <td><%= js_reorder_links(id, "reorder_group_by") %></td>
</tr>