"internet explorer" fixed position workaround

Simple but not explained example: http://annevankesteren.nl/test/examples/ie/position-fixed.html

Explanation: http://tagsoup.com/cookbook/css/fixed/#tracert

Another way explained: http://72.14.203.104/search?sourceid=navclient&ie=UTF-8&rls=SUNA,SUNA:2006-12,SUNA:en&q=cache:http%3A%2F%2Fjessey.net%2Fsimon%2Farticles%2F007.html

The same variation explained: http://tagsoup.com/cookbook/css/fixed/

The same variation explained: http://www.xs4all.nl/~vangeijt/test/fixed.html