if (PreviewWizardPage.PAGE_NAME.equals(pageName)) {
if (IPreviewWizardPage.PAGE_NAME.equals(pageName)) {
	private void previewPressed() {		IWizardPage current= fCurrentPage;		fCurrentPage= fCurrentPage.getNextPage();		if (current == fCurrentPage)			return;		String pageName= fCurrentPage.getName();		if (ErrorWizardPage.PAGE_NAME.equals(pageName)) {			if (showErrorDialog((ErrorWizardPage)fCurrentPage)) {				fCurrentPage= fCurrentPage.getNextPage();				pageName= fCurrentPage.getName();			} else {				return;			}		}		if (PreviewWizardPage.PAGE_NAME.equals(pageName)) {			fCurrentPage.createControl(fPageContainer);			makeVisible(fCurrentPage);			updateButtons();			if (((PreviewWizardPage)fCurrentPage).hasChanges())				resize();			else				getButton(IDialogConstants.OK_ID).setEnabled(false);		} else {			fCurrentPage= current;		}	}