Name Value Pairs SparkWeb

Problem: When I execute Sparkweb I want to automatically be logged in and auto-join a specific chat room.

Question: Is there a way to give Sparkweb name-value HTTP parameters to auto-join a chat? or is there a configuration jive_sparkweb_getConfig() in the Sparkweb.html file that I can set?

I saw the post where this is possible with Spark.exe but it doesn’t look like this is possible with Sparkweb.

If this is not possible does anyone know of a webclient that can take in HTTP name-value pairs to autologin and place me directly in a client.