Topic: iWeb and pop up viewers

Hi everyone,
A quick search couldn't find an answer, so apologies if this has already been asked. I'd like to use SimpleViewer galleries in my iweb website, but would like them to load as a popup window instead of a fullsize window.

I haven't had much practice editing the html code for the iWeb site to insert the SimpleViewer gallery, but when I check the gallery straight after exporting from Aperture, it appears as a fullsize window. Maybe I'm missing something....

Any ideas?