This is Live Agent (http://www.qualityunit.com/liveagent) - live chat software 
from Quality Unit (http://www.qualityunit.com)

It is commercial software, and only licensed customers are permitted
to use this software. This software is copyright (c) Quality Unit.
If you have received this software without a license, you must
not use the software, and you must destroy your copy of it immediately.

support@qualityunit.com