Try to avoid popups. It's a question of style. Furthermore, there are popupblocker what may block your window. I hate popups. Is there really a reason not to show your result in the window you have?
Actions aren't performed "in" pages, they're performed "on" backing beans. Whether the page that's navigated to is in the same window or another one is a different matter. However, in my browser configuration, popup pages are either suppressed or open in invisible tabs, so design accordingly.
Education won't help those who are proudly and willfully ignorant. They'll literally rather die before changing.
You’ll find me in my office. I’ll probably be drinking. And reading this tiny ad.
Gift giving made easy with the permaculture playing cards