How do I target an iframe from within flash?

I have a windows media player within an iframe that is streaming a video. I need to be able to target the player from within flash and tell it to play a new video. The video player seems to have an ID tag of <OBJECT ID="MediaPlayer1"

But how do I target it from flash and tell it to play a new video? Can you help me?

Thanks.

I tried to put all the code in but it crashed everytime.

OBJECT ID="MediaPlayer1"
value="mms://66.180.203.186/newbandtest"

Why not just use getURL(url, window) in flash and load a new url with a movie inside the iframe? (iframe name="f1" / openURL(url, "f1")