IPreviewWizardPage page= (IPreviewWizardPage)getPage(PreviewWizardPage.PAGE_NAME);
IPreviewWizardPage page= (IPreviewWizardPage)getPage(IPreviewWizardPage.PAGE_NAME);
	public void setChange(IChange change){		IPreviewWizardPage page= (IPreviewWizardPage)getPage(PreviewWizardPage.PAGE_NAME);		if (page != null)			page.setChange(change);		fChange= change;	}