<% _sort_args = [] %>
<% @survey.survey_questions.each do |question| %>
  <% _sort_args.push [question.id.to_s, question.id.to_s, 'span1', question.title] %>
<% end %>
<% _sort_args.push ['created_at', 'created_at','span1', 'created_at'] %>
<%= render_sort_bar(true, delete_panel_survey_back_end_survey_answers_path(@survey, :direction => params[:direction], :sort => params[:sort], :sort_options => params[:sort_options]),
  *_sort_args).html_safe %>