Closing modal box with iframe Inside the iframe

Answer 1

The embedded iframe is pointing to a URL on a different domain correct? In this case no, you cannot for security reasons make any calls to the parent document from within the iframe.

Answer 2

You can't modify an element that "belongs" to the parent page from within that popup page. As far as I know you will have to issue your hide code from the parent. You could always have your code inside the dialog do something like this:

parent.$("#dialog").hide();

I think that's what you're asking...