Detecting the Flash Plug-in (and a generic preloading clip)

If the browser doesn't have any Flash plug-in, then they will be redirected to another page with JavaScript.

If the plug-in they have is earlier than version 5, the embedded .swf redirects them to that same page, i.e., noflash5.htm

How did I make this html page?
Dreamweaver 4.
I used the built-in "check for plug-in" behavior.
If you view the source of this page to see the code, note that there are scripts in three places: the head of the document, in the body tag, and at the bottom of the document.