Get the width of the window and pass it to php?

Hello!
I want to get the width of a window and have it on a php variable. How can I do this?
Any help will be really appreciated!

Hello!
I want to get the width of a window and have it on a php variable. How
can I do this?
Any help will be really appreciated!

http://www.quirksmode.org/viewport/compatibility.html

-Darrel

Thanks for your help!
It seems pretty cool, but how do I pass the value to a php variable?

Thanks for your help!
It seems pretty cool, but how do I pass the value to a php variable?

I don't know. I guess one option would be, via javascript, to set the value
of a hidden input field and then have PHP grab the value from there.

-Darrel