Moving system Dialog boxes

[Edwin Gore]

I have an application that uses a toolbar and a document window. The problem
that I am running into is that there are one or two circumstances where I
need to present an "answer" dialog to the user before a document has opened.
On windows this centers the dialog on the toolbar/menubar, which is ypically
going to be near the top of the screen. Is there any easy way to change the
position the dialog appears at? I have a feeling that there isn't an I am
going to need to cludge something together...if I open an invisible window
it be active and be used to move the dialog?

Thanks,

Edwin Gore