:-object object_@xsl_example_step : [slides].
  
  var url = '@talk-@xsl-example-step.wrl'.
  var slideset = '@xsl-example-step'.
  var interface = '@xsl-example-step-interface'.
  
  main :-
          load(url),
          delay(5000),
          
          initialize,
  
          watch(slideset),
          connect(interface),
  
          delay(2000),
          !.
  
  :- end_object object_@xsl_example_step.