communication protocol

Hi List, I'm looking for a chat support likes the livezilla. The livezilla is a great tool but doesn't have language supports to another language instead english and german (operator side). Then I thought that a good option would be develop my own chat support. A great solution is build the server side in PHP. The client side would be developed in PHP. For the operator side I thought that could be a Desktop Windows Application build using the Flex. I found that have a communication tool called BlazeDS for Flex that works and helps with the development of this chat support. But the BlazeDS is for Flex/Java. Is there some tool in PHP that helps the development of a server web messaging likes the BlazeDS? Thanks for all. Augusto Morais