You used JavaScrript to write WHAT?
cio.com
cio.com
We're quite proud to be stretching the limits of reason :-)
But in all seriousness, this is a decent explanation of the difference between a web page and a web app. Very few people writing things on the web today need javascript, and designers of such sites should ensure that their pages do degrade gracefully. If you're building an application of some reasonable level of complexity, however, it's probably okay to leave those unwilling to join the javascript party behind.
Do I have to remind you that IE 5.0 is already 10 years old, IE 6.0 at least 7? and IE 7.0 already 1 year old?
Javascript is obviously here to stay and part of the web reality, whether you like it or not...