The other day I had what could only be described as a ‘Roy Scheider moment’, you know the bit in the film Jaws where the camera tracks-in whilst zooming-out at the same time. Well, whilst debugging an XForms enabled application, the Mozilla XForms plug-in had exposed the host document, XForms and all, as the content of the empty xf:instance. How odd. I mean, what good is that? That’s when it struck me in a Roy Scheider sort of way; this was Reflection, the ability of a program to look at itself and change its behaviour.