Obtaining screen sizes

[gm456]

I'm using JavaScript in a couple of places to allow me to define a screen size in forms (example below) but can I get this variable somehow into CF?

Eg, it the resolution is set to 800x600, the intro screen should only display 2 columns, if it is 1024x768 I can use three columns.

TIA
gm456

-
<SCRIPT LANGUAGE=&quot;JavaScript1.2&quot;>

document.write(&quot;<INPUT TYPE='TEXT' tabindex='6' NAME='resolution' size='5' value='&quot;
<!-- Begin
if (screen.height >= 768 && screen.width >= 1024) {
document.write(&quot;6'>&quot;
}
else {
if (screen.height == 600 && screen.width == 800) {
document.write(&quot;5'>&quot;
}
else {
document.write(&quot;4'>&quot;
}
}
// End -->
</script> [sig][/sig]

 

[gm456]

I've sort of answered this one myself - cf_browserhawk is a plug in that gives you this facility, although I'd still like to be able to do it without third party products [sig][/sig]