I've an example of a technique here:
http://www.depressedpress.com/Content/Development/ColdFusion/Articles/GetRes
/Index.cfm
That code is really old however.
The version I'm actually using is wrapped as a custom tag and determines JS
version (and whether or not it's enabled) as well. I'll attach the
JavaScript of it below.
Jim Davis
<script language="Javascript" type="text/javascript">var JSVersion =
1.0</script>
<script language="Javascript1.1" type="text/javascript">JSVersion =
1.1</script>
<script language="Javascript1.2" type="text/javascript">JSVersion =
1.2</script>
<script language="Javascript1.3" type="text/javascript">JSVersion =
1.3</script>
<script language="Javascript1.4" type="text/javascript">JSVersion =
1.4</script>
<script language="Javascript1.5" type="text/javascript">JSVersion =
1.5</script>
<script language="Javascript" type="text/javascript"><!--
// Default all Values to Zero
ColorDepth = 0;
ResHeight = 0;
ResWidth = 0;
ResAvailHeight = 0;
ResAvailWidth = 0;
ResBrowserHeight = 0;
ResBrowserWidth = 0;
// Get the basic values
if (JSVersion > 1.1) {
ColorDepth = screen.colorDepth;
ResHeight = screen.height;
ResWidth = screen.width;
ResAvailHeight = screen.availHeight;
ResAvailWidth = screen.availWidth;
};
// Try to get the Browser Window info
// If the innerwidth property is set then try to use that -
supported by Netscape and several other browsers
if( typeof( window.innerWidth ) == 'number' ) {
ResBrowserWidth = window.innerWidth;
ResBrowserHeight = window.innerHeight;
// The following is only supported by IE 6 in some cases.
} else if( ( typeof( document.documentElement.clientWidth ) ==
'number' ) && ( document.documentElement.clientWidth > 0 ) ) {
ResBrowserWidth = document.documentElement.clientWidth;
ResBrowserHeight = document.documentElement.clientHeight;
// Finally test if we're IE and use the IE specific values
} else if( document.body && ( document.body.clientWidth ||
document.body.clientHeight ) ) {
ResBrowserWidth = document.body.clientWidth;
ResBrowserHeight = document.body.clientHeight;
};
// Create the call to the image
document.write("<img src='FauxGIF.cfm?ScreenData=JS" + JSVersion +
"," + ColorDepth + "," + ResHeight + "," + ResWidth + "," + ResAvailHeight +
"," + ResAvailWidth + "," + ResBrowserHeight + "," + ResBrowserWidth + "'
width='1' height='1' alt='' border='0'>");
//-->
</script>
<noscript><img name="HeartBeat"
src="FauxGIF.cfm?ScreenData=NoJS,0,0,0,0,0,0,0" width="1" height="1" alt=""
border="0"></noscript>
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