How can I open a new browser window to a given size?

Mina has asked for the wisdom of the Perl Monks concerning the following question:

From the CGI.pm manual, one can get a new browser window to pop up if one uses:

$query = new CGI;
[...]
print $query->start_form(-target=>'_new');
[...]
[download]

My problem is that this opens a window of the same size as the original.

Now, is there a way to do this, by adding aditional arguments (that I don't know about) to the start_form, or, is there another way of doing this?

(In my time, all we had was HTML 2.0!)

~mina

Originally posted as a Categorized Question.