(if strain.can_delete?
        link_to image("destroy", :alt => "Delete", :title => "Delete this strain"), {:action => "destroy", :controller => 'biosamples', :id => strain.id, :class => 'strain', :id_column_position => 5},
                             :confirm => "Are you sure you want to delete this strain?", :method => :delete, :remote => true
      else