The reason for creating this version is quite simple. The time example built as a demonstration for jQuery UI seems overly complicated (to me) and relies on additional scripts. I wanted something simpler and reliant upon no other libraries.
While building this, I came across a deprecation issue. The original code would work with jQuery UI version 1.9. However it would not work with version 1.10. After some framming around, I found the problem.
This version is based on version 1.9.
For later version of jQuery UI, the code .data("spinner") needs to be changed to .data("ui-spinner")