delete_icon = sample.can_delete? ? (link_to image("destroy", :alt => "Delete", :title => "Delete this sample"),
                             {:action => "destroy", :controller => 'biosamples', :id => sample.id, :class => 'sample', :id_column_position => 6},
                             :confirm => "Are you sure you want to delete this sample?", :method => :delete, :remote => true) : disabled_delete_icon