Problem with file submission via ajax into an iframe

[eluser]m4rw3r[/eluser]
Ok, I think I got the problem solved:

I need to get the JS to click the form button instead of submitting the form.

Code:

/// replace:
$(form).submit();
// with:
$('button',form).click();

It seems to work in both IE, Firefox, Chrome and Safari.
But Opera still thinks I want to have the content of about:blank.