Do you want to write some code?
Learn the basics of these popular programing languages on the following websites.
There are many more, but these will serve you well if you want to go into GIS.
Here is a pretty comprehensive list from Penn State
Snippets of Code & Places on the web that I found them
jQuery Slide Viewer 1.2 based on a single unordered List
jQuery Royal Slider
This is the slider that I have been using, but you have to pay to play. At $14 it is well worth your spare change and this developer deserves the thank you. You may be able to find it for free, but the packaged download is very tidy and your photos or content will be sliding "royally" in minutes.