How to monitor transfer data between FMS and Client

Hi all

I want to send bytes array from Flash Media Server to client

Client.prototype.sendData = function(bytes){

//bytes is BytesArray

     client[0].call("reciveData",null,bytes);

}

This code is work succesfully but I like to show progress bar to download this BytesArray for client. But reciveData doesn't call before all ByteArray is download on to the client.

Please advise me to create progress bar for show how much if BytesArray is downloaded for client.

Any help will be appreciated.