Thanks, Peter, I’ve seen that this behavior only happens when using ImgSrc in the button, while in the normal button if it is disabled does not trigger the event. then use buttons with html content that work very well.
Do you have any idea why I can not fix the problem, even though I noticed that putting any css class none that does not exist on the markup works perfectly well.
I also saw that the user of furum wendace had the same problem.