ActionManager.getInstance().getAction(Constants.ACTION_GOTOSTEP) .setEnabled(true);
	public PostConditionCheckerState (ActivityScheduler activityScheduler,			Activity activity)	{		super(activityScheduler, activity);				System.out.println("PostconditionCheckerState : constructeur");		this.activityScheduler.resetSplitPane();		this.activityScheduler.checkBeforeEnd();        this.activityScheduler.fillDirectAccessComboBox();        this.activityScheduler.autoComboSelect(this.stepList.size() +2); 				// on masque le bouton next        ActionManager.getInstance().getAction(Constants.ACTION_NEXT)                .setEnabled(false);        // on affiche le bouton terminate        ActionManager.getInstance().getAction(Constants.ACTION_TERMINATE)                .setEnabled(true);        //on affiche le bouton previous        ActionManager.getInstance().getAction(Constants.ACTION_PREVIOUS)                .setEnabled(true);	}