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Hi, I found some code that I tried.
There are two aspects of this No Java Virtual Machine detection.
Step 1:
Copy the file NOJAVA.HTML into your virtual tour directory
This file has a very polite message, and offers the reader
the option of getting the CD from Microsoft or downloading
it from a website (www.dhimaging.com.au). You are more than
welcome to download the file yourself and change the HTML to
point to the file's location on your web server.
Step 2:
Immediately under the <BODY> command of the HTML file that you
want check for Java Virtual Machine, simply cut and paste the
following:
<SCRIPT LANGUAGE=JAVASCRIPT TYPE="TEXT/JAVASCRIPT">
<!-- hide from old browsers (IE 4.0 and earlier)
if (!navigator.javaEnabled()) {
newWindow = window.open('nojava.html', 'newWin', 'width=420,height=260')
}
-->
</SCRIPT>
Step 3:
The result? An invisible Java Virtual Machine detector that works
with JavaScript. It's all client-side, so no special server is
required.
HOWEVER, it will only work with Internet Explorer 4.0 and newer,
or Netscape Navigator 3.0 or later. It is *cross platform*,
but keep the version in mind.
Here is an example html page that the code referes to:
<HTML>
<HEAD>
<TITLE>No Java Virtual Machine</TITLE>
</HEAD>
<BODY>
<CENTER>
<TABLE BORDER=2>
<TD WIDTH=400 ALIGN=CENTER>
Java is NOT enabled on this machine.<BR>
You will need Java Virtual Machine in order to<BR>
see the Virtual Tours on this site.<BR>
Sometimes JVM is <B>not</B> installed on some computers.<BR>
For example, Internet Explorer 6 does not come with it.<BR>
Also, Windows XP may not have it installed either.<BR>
The file is available free from Microsoft via a CD...<BR>
Or you can download it from our website by clicking the link below.<BR>
Please click <a title='http://www.dhimaging.com.au/downloads/utilities/Msjavx86.exe'>here</a> to download and install it.<BR>
</TD>
</TABLE>
<BR>
<A title="javascript:window.close();">Click Here to Close This Window</A>
</CENTER>
</BODY>
</HTML>
Hope this helps.
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Topic: Detecting if MS JVM is installed?
