Resizing can be done using client side javascript, however hiding the
objects of the "active" window is a much more complex affair.
I believe you only have two options. The first is to use IE and create an
HTTP Application:
http://msdn.microsoft.com/workshop/author/hta/hta_node_entry.asp
The second would be to use signed Javascript, with an appropriate
certificate from a designated authority and escalated security rights in the
browser. Very complex solution for anything, you'll need to fish about on
Netscapes web site for information.
Perhaps an easier approach would be to try and open a new window from some
main window with the toolbar aleady disabled and the size pre-set.
--
Regards
John Timney
ASP.NET MVP
Microsoft Regional Director