<%= form_tag( searchmembers_course_path(@course), method: 'get',:class => "f_l",:remote=>true,:id => "search_student") do %> <% if @group %> <%= hidden_field "search_group_id", params[:search_group_id],:value => "#{@group == -1 ? -1 : @group.id}", name: 'search_group_id' %> <% else %> <% end %> <% end %>