use just the same code but with popupPanel. set modal="true"
Thank you for the reply Ilya. I managed to figure it out just yesterday after bumping my head around in the dark for a little bit. It works great!
By the way, is there a replacement for the rich:spacer?
is there a native way in richfaces framework to create a Modal Panel to show a animated gif with while the process finish?
Sorry for my english.