How do I create a small pop up window on the desktop?

Hi everyone, I'm a bit of a novice and I'm trying to figure out how to create a small position able pop up window running in the background.

The idea is I am going to create a form that the user can input reminders into that will go off every x minutes as a small pop up window on their desk top then fade off.

I want to use this to help people remind themselves of better habbits like 'sit up straight', 'breathe' etc.

Thanks

The WebNODe Plugin would do this by making an app that you can then call

Browser plugin behaviors from as well to "bring to front" or "focus"

...or you could use the windows 8 plugin..

and use the "Timer" behavior

of course the app that you create must be compiled and running in the background in order to pop up at the times you require

should get you going