Hi Acorn,

Thanks greatly for a comprehensive response. Really helpful and it certainly makes sense of some of what's happening.

I didn't use the IFRAME option as I know nothing about that - as you can see I'm groping around in the dark here. So I assume I've used the full source code. It was the one labelled 'Embed' on JF's interface.

I was specifically trying to avoid users leaving the page, hence the pop up layer, but maybe I'll have to forgo having the two buttons.

Anyway it's all learning, so thanks again for the information.

Penny