You can view the change I want made to the supersized js file here: http://www.backupondemand.com.au/slideshow/developer-notes.pdf I have packaged the Supersized Jquery plugin up along with images here http://www.backupondemand.com.au/slideshow/slideshow.zip You can view a demo of my packaged slideshow here http://www.backupondemand.com.au/slideshow/demo/ (currently it just shows full screen for all the images, if you read the developer-notes.pdf you will see how two of the 4 images should show as Portrait based on my new options of portrait : 'Y' or 'N' being added to each image in the slideshow. The plugin developers website is here if you want access to the plugin documentation http://buildinternet.com/project/supersized/ Keywords: Prototype, jQuery