Adding more one server into sparkweb!

Hi everybody, i have a little problem, i have 2 servers for OpenFire, and i need integrate thats urls into in sparkweb for my clients, how can i put the servers address into the combo-box of the sparkweb. I kwon that i need edit the sparkweb.html but i dont kwon how put the seccond server.

Thanks.

Javier Mejia