if (control != null && !control.isDisposed()) { presentation.clear(); Rectangle size = this.control.getClientArea();
if (browser != null && !browser.isDisposed()) {
	private void updateDisplay() {		if (control != null && !control.isDisposed()) {			presentation.clear();			Rectangle size = this.control.getClientArea();			String html = ("<b>" + title + "</b><br/>" + description);			html = presenter.updatePresentation(getSite().getShell()					.getDisplay(), html, presentation, size.width, size.height);			control.setText(html);			TextPresentation.applyTextPresentation(presentation, control);		}	}