I found myself needing a simple entity conversion tool when working with XML files. Not finding exactly what I needed online I finally broke down and created my own. I refined it a bit and posted it up.
Check it out: Simple Entity Converter
Update: 12/18/07
I have been doing a little tweaking:

Minor updates to the layout
Broke [...]

This one caught me off guard. After upgrading from Prototype 1.6 RC0 straight to the final release I found that all my custom JavaScript code simply lay there dormant. Fighting off panic I did some quick googling and ran across this post detailing how custom events are now namespaced. Hopefully this post helps others out [...]