ASP.NET - Tab order not working after ajax postback - Goes to the browser url

I have used Update Panels in my ASP.net webpage. I have a modal popup. But the tab index is set to -1 for all the parent page controls once the modal popup comes in picture.

Does anybody has resolution for this. I tried again reseting the tab index through javascript......But its not working(may be DOM is not get开发者_运维问答ting refreshed)

Regards,

Justin Samuel

I have seen this happen when you have multiple ModalPopupExtender controls open at the same time. If you hide whichever popups you aren't currently using, that fixes the problem. (Or at least it did in my case.)