How to Detect “prevent this page from creating additional dialogs”

Question

QUESTION

How can I detect if a user has checked the box, "prevent this page from creating additional dialogs"?

WHY It\'s a problem

If the

Answer 1

I think you cannot change it - it's browser feature.

My first idea if you need workaround would be to change code from using system confirm to some js library alert (from e.g. jQuery UI)