Hi Nadya,

>I still haven't chance to use your class in our BTCrit project, but we're getting close:) So, I have a question for you: can I change pages visibility after initialization of the object? How?

Actually, at runtime is the only way to do it. I gave it a method to make it easier now, and you can download the latest version from here. (Should be under "NEW" or File#9616). Just check out the sample form or the Text file included.