I have some applet users who have very old java versions (microsoft vm or
versions < 1.5)
I would like to notify them with a request to update their java version.

I created a java applet containing
version = System.getProperty("java.version");

Then I compiled it under java 1.2 (javac).

That works to collect the version number.
____

Now I want to notify them.
Ideally I would do appletContext.showDocument(url) to
pop up a web page with a link to www.java.com to install newer java code.

But showDocument is a 1.4+ method.

Any ideas on how to show a web page from an old java version?
Any better ideas on notification?  (Javascript maybe?)

Thanks