Both galleries are Flash-based and use the excellent SlideShowPro. I'm using the SSP for Lightroom web engine purely to generate the content, the jpegs and the xml file with all the filenames and captions. But they're displayed via my own Flash movie which is based on an SSP for Flash component. This approach means I can quickly create new galleries to add to existing pages, while the power of ActionScript lets me show extra information like the gallery's name and description. As my long-threatened Flash-based site uses the same SSP galleries, the transition - if it ever happens - should be painless….