Real time syntax colorizer (web) for Smalltalk

Dear all, I don't know if this was aready done, but anyway:

<a href="http://cs.hernanmorales.com.ar/codeEditor.php" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://cs.hernanmorales.com.ar/codeEditor.php

Cheers,

Hernán