chat question revisited?

[Karen Lewellen]

Hi all,
since i started this exchange here, I thought I would with a bit of an 
update, and a small request.
The company in question, webcrossing, is not only willing to re-event the 
wheel, they are asking how.

I again am not talking about messenger services, or irc, or some of the 
other chat locations.
webcrossing provides free of chart, a chat client for their customers to 
use.
It also supports javascript, I have discovered, but they want to be sure 
it include other protocols for greater accessibility.
so,
given I am no programmer, can  those here who are mor expert suggest 
standard protocols that should be  included so that more browsers can also 
access their chat area?
interestingly enough, everything else works fine, but nothing else 
involves Java in any way.
Thanks for your input.
Karen