Detect screen size and setting iframe size

[Johngolden1786]

I have an embedded iframe video. Instead of setting the sie of the display of the video in the embedded iframe code is there a way to detect the browser window size, and then set the iframe Window to say, 5pixels less on each side?

[toicontien]

These blog posts might help:

http://www.quirksmode.org/mobile/viewports.html

http://www.quirksmode.org/mobile/viewports2.html