Document Object Code

Hi all,
I've spent the last two hours looking for an example of this, but I've
come up short. What I was trying to do was create a 'test' which would
toggle a rectangles hidden property. Unfortunately, I can't seem to
figure out how to send my toggle function a document object.
Here's what I'm after. A 'bundle' report for my sales team. From
parameters, they choose a client to print for, and then select a series
of true/false parameters. Each 'sub-report' is contained in a
rectangle which will render only if the corresponding true/false is = true. In the rectangle hidden property, I had set the expression
=Code.setHidden(this)
Hoping that it would send the 'rectangle2' object to the setHidden(),
which would test the parameters, and correspondingly hide where
appropriate.
Any ideas?
Thanks much.
Brian AckermannIs it not possible to pass a document object to a code block?
Thanks,
Brian Ackermann