if @removed
  status_message = "Removed #{@successor.description} as dependency from #{@predecessor.description}."
  page.notify :notice, status_message, 5.0
  
  # replace old predecessor with one without the successor
  page.replace dom_id(@predecessor), :partial => 'todos/todo', :locals => { 
    :todo => @predecessor, :parent_container_type => parent_container_type }
 
  # if possible, remove successor from pending block
  # TODO: do not remove when multiple dependencies
  page[@successor].remove unless source_view_is :context

  # if possible, add successor
  container = "c#{@successor.context_id}items" 
  container = "p#{@successor.project_id}items" if source_view_is :project
  page.insert_html :bottom, container, :partial => 'todos/todo', :locals => { 
    :todo => @successor, :parent_container_type => parent_container_type }
  page << "TodoBehavior.enableToggleSuccessors()"
else
  page.notify :error, "There was an error removing the dependency", 8.0
end