The short answer is: You can't.The long answer is:There are browser
security restrictions that prevent messages and events from being passed
between the parent frame and an IFrame, especially when the IFrame loads
a page that is not in the same domain as the current web page. This is
to prevent all sorts of malicious attacks that I won't get into here.The
only way you can know what is happening in an IFrame that loads a
third-party page is if that third-party page posts "messages" back to
the pa...