check if java is working

[dtest]

I need to check if my visitors have java working. There is a page on my site that contains only a java applet and I want to automatically show information on how to install java only if the applet is not able to load (when the user has java disabled or not installed)

I already tried the following javascript:

<script type="text/javascript">
if(navigator.javaEnabled()){
document.write('Java is enabled');
}
else {
document.write('Java is not enabled');
}
</script>

but it's not acurate enough. it only tells if the user has java enabled in their browser options, it does not say if the user has java actually installed and if it's working

[dtest]

anyone?

[Fotiman]

I haven't found anything that looks to be too reliable. The closest I found was to set the *mayscript* attribute on the applet, then use JavaScript to call a method within the applet, wrapping the call in a try/catch block. A bit of a hack it would seem.

[stajer]

Look at the specification for the applet tag for your java applet. You can include text that only displays if java is not installed on the machine

<applet ....>

<p>You do not have java installed. <a href="">Click here to get java</a>.
</applet>

[dtest]

Look at the specification for the applet tag for your java applet. You can include text that only displays if java is not installed on the machine

<applet ....>

<p>You do not have java installed. <a href="">Click here to get java</a>.
</applet>

that doesn't work. it just displays a white box where the applet should be. At least on firefox it does. I've placed your code (plus an ending </p>) right under the <applet> tag.

[DrDoc]

Have you tried using the <object> tag instead? It is much better at fallback than <embed> or <applet>.

[w3.org...]