This displays the actual percentage of the screen being used

<SCRIPT LANGUAGE=”JavaScript”>
<!– Idea by: Giulio Gravinese –>
<!– Web Site: http://www.universeg.com –>
<!– Begin
// IE Compatability by Errol Burrow (errol@thru.net)
function getwindowsize() {
if (navigator.userAgent.indexOf(”MSIE”) > 0) {
var sSize = (document.body.clientWidth * document.body.clientHeight);
return sSize;
} else {
var sSize = (window.outerWidth * window.outerHeight);
return sSize;
}
return;
}
// End –>
</script>
<SCRIPT LANGUAGE=”JavaScript”>
<!– Begin
var percent = Math.round((getwindowsize()/(screen.width * screen.height)*100) * Math.pow(10, 0));
document.write(”This window is using about ” + percent + “% of your available screen.”);
// End –>
</script>