Hi I did try that :), The application does still run in the background, its just that the user won't see the application running unless they focus the application again.

For example:
x = 3. If the user clicks outside the application, and x = 6, they won't see the update of x = 6 until they focus the application again. There seems to be this jquery example that I could implement into the html5 myself, I guess I will give that a try. I don't have two computers ready to debug with me at the moment.

If for example I click away from my application, the game will freeze until I focus it again. This is not the pause problem since I did add FLX_NO_FOCUS_LOST_SCREEN. That just gets rid of the pause button.

I am making a multiplayer application and would like to application to keep running when it isn't on focus. Is this possible?

I've tried it and its null. The thing is after looking at Keyboard.hx, it's set to null by default:
public static var capsLock (default, null):Bool;

Is there any possible way to determine if a user's caps lock is on. The user could potentially have it on before loading my application. It seems there is a code to determine if caps lock is pressed, but not if its on already.

This is for target HTML5 by the way.