Any Bright ideas here?

I'm trying to make the middle of my script maximize the internet explorer window that its doing work in. Currently when i do a:
setFocus(<<Internet Explorer Window Name>>)
it opens the window in a small window format, not full screen, like I want it.
The only way to make it full screen, using the keybaord, that my little brain knows how, its to do an:
ALT - SPACEBAR - X
Sure. That sounds easy to do using sendkeys, except now I can't figure out how to get sendkeys to just send an ALT key, by itself, OR a SPACEBAR key... (which I don't believe is the same as a Sendkeys(" ").

Any thoughts?

Thanks in advance for your words of wisdom.