Full Screen - Using Flash MX - AS Help

Hi:
I started a thread in MX Forum,

Basically, I was inquiring about creating a full screen flash site. More and more I am seeing flash sites automatically go full screen when I access the site. (Not giving the option to go Full Screen or Normal). Is there a special script for this? (IE: www.pablodavi.com) I also notice that I am able to resize the window and objects are auto (or dynamically) re-centered.
[URL=“http://www.kirupa.com/forum/showthread.php?t=211659&highlight=background”]
My Question is:
** When creating the background image (in Photoshop) what size should it be. (to cater to all screen sizes). **Any assistance you can give would be great. (I know its probably a dumb/easy question)

(Yes, I use Flash MX)

This is a pretty cool trick that I would like to incorporate into my future designs so any help would be cool.

I saw this thread: But still have not found the answer.
http://www.kirupa.com/forum/showthre…ght=background

(I hope this makes sense)

Here is another example of what I am trying to accomplish…

http://www.infinityart.ro/index2.htm

thanks for your assistance!

any help would be appreciated, somebody has to know…thanks!

heres another example…

http://www.gafmediastudio.com/

everything appears to (dynamically) shift when you re-size…but the Background appears to be a little distorted when re-sized…doesnt it?

please help!