This is a very simple implementation of the amazing, open source TimelineJS. The web site of the creator knightlab is here.
This app is fully functional and you can get it running in minutes :). But you can also adapt it to your needs - enjoy!
More about this app can be discovered if you read this blog-post
If this is the first time you've seen DNN-Apps and would like to try one - just install 2sxc first, then install this app inside it.