is there a way to get gliffy diagrams to show without scrollbars in confluence?

[Paul Woods]

I create a gliffy diagram to be 1000 * 600 and put it in a confluence page, what I see is 10th of the image with vertical and horizontal scrollbars around it - which sucks.

[Mirek]

I remember this was possible to workaround by using custom JavaScript hack that set up scrolling="off" on the Gliffy iframe.