Press ok button will trigger onbeforeunload event in popup-dialog on ie9

[culaido]

In my code,

I set a listener for beforeunload event to prevent user close browser once they do the modification on the form.

ex:

//jQuery 1.9.0
$(window).bind('beforeunload', function(e){
   // do some check ....
   return 'beforeunload';
});	

But IE9 fires beforeunload event while user press ok button in popup-dialog (link, image ...etc), so, it causes the error flow in my code.

Is anyway to avoid it?