rescue_from_actioncontroller_routingerror.rb

rescue_from ActionController::RoutingError, :with => :page_not_found

private
def page_not_found
  activate_authlogic
  @possible = Title.find_tagged_with(request.request_uri.split('/'), :on => :tags, :limit => 5)
  render :template => "shared/page_not_found", :status => :not_found
end