This JavaScript detects the presence of the Google Toolbar on browsers using Microsoft Windows and Internet Explorer 5.0 or higher.
Developer: banbots.com Platform: Date upd:2003-01-13 Hits2178 [Visit]

This script shows an alert with the viewer's browser name and browser version when entering your page.
Developer: javascriptcity.com Platform: Date upd:1999-12-29 Hits2378 [Visit]

This script allows you to conditionally apply two different style sheets to your page depending on whether the user's Operating System is Mac or PC (default). The style sheet to load can either be two global inline styles or external CSS files.
Developer: dynamicdrive.com Platform: Date upd:2003-08-17 Hits2396 [Visit]

This JavaScripts shows the principal properties of your browser - the name by which it identifies itself, and the plug-ins supported. It also lists all the document types for which a plug-in has been defined, together with the name of the plug-in that handles
Developer: raingod.com Platform: Date upd:1999-09-28 Hits3114 [Visit]

Use this code snippet to determine and display the color depth your visitor is using.
Developer: cgiscript.net Platform: Date upd:2001-05-17 Hits1921 [Visit]