I've used Netscape a long time too - since the days when most people used Mosaic. Javascript shouldn't trouble Netscape - after all, they invented it.
Come on over and have a look at
http://www.amdragon.com/cgi-bin/wwwthreads/wwwthreads.pl.
My sites are always designed to run on the current version of both the 'big 2' browsers. I keep them backwards compatible and these days I even test them on WebTV. You can't go on forever catering for every deviation in the book or you'd end up with something very dull and boring. If some people elect to deliberately limit their own web experience then that's their perogative but it doesn't mean everybody else should be served watered down pages.
[]
http://www.amdragon.com/images/eileensig.gif[/]