Vertical Slideshow
Science picture, it looks like AJAX enabled. There is no page refreshing.
Code is named "js/image-slideshow-vertical.js" which can be found in www.dhtmlgoodies.com.
There are a number of ways of displaying picture on web as slide. Some of them are really advanced.
In reality, AJAX is still the weapon dominating the market. Flex looks good, just like mission few are really using it.