public void addAfterBuildScript(String pathname){
  _afterBuildScripts.add(pathname);
  setDirtyAndFirePropertyChange("addAfterBuildScript",pathname,null);
}

public void addAfterBuildScript ( String pathname ) { _afterBuildScripts . add ( pathname ) ; setDirtyAndFirePropertyChange ( "addAfterBuildScript" , pathname , null ) ; }
add a script to run after a train is built
