JS SCREEN OBJECT PROPERTIES EXAMPLE
Run 
<!DOCTYPE HTML>
<body>
    <script Language="javascript">
        document.writeln("Total Height : " +screen.height+"<br/>");
        document.writeln("Total Width : " +screen.width+"<br/>");
        document.writeln("Available Width : " +screen.availWidth + "<br/>");
        document.writeln("Available Height  : " +screen.availHeight + "<br/>");
        document.writeln("Screen Color Depth : " +screen.colorDepth + "<br/>");
        document.writeln("Screen Pixel Depth  : " + screen.pixelDepth + "<br/>");
    </script>
</body>
</html>