I bought 'The JavaScript Anthology' a few months ago and I have been experimenting with the dropsheet/popup form example.

I had a existing div/form already 'hidden' in the page and wanted to make this available when clicking a hyperlink. I discovered I needed to append the div to the end of the body element (using appendChild) in order to put in above the drop sheet.

Would you recommend doing it this way? To build the div in JavaScript is a little too lengthy and using z-index didn't seem to help either. This way the information is already somewhere on the page (hidden initially) and can be called upon when required. I've not looked into iframes at this stage.