private Cursor waitCursor;
	private Cursor arrowCursor;

	/**
	 * Set cursor to wait cursor
	 */
	public void setCursorToWait() {
		shell.setEnabled(false);
		if (waitCursor == null) {
			waitCursor = new Cursor(display, SWT.CURSOR_WAIT);
	        }
		shell.setCursor(waitCursor);
	}

	/**
	 * Set cursor to default cursor
	 */
	public void setCursorToDefault() {
		if (arrowCursor == null) {
			arrowCursor = new Cursor(display, SWT.CURSOR_ARROW);
	        }
		shell.setCursor(arrowCursor);
		shell.setEnabled(true);
	}

// Show a busy indicator while the runnable is executed
BusyIndicator.showWhile(display, runnable);