...
> Currently not all browsers inform user when he open a webpage with an
> applet and he does not have JRE on his computer. He just see a blank
> space and in many cases - do not know what is that.
It is not the browser's job to inform the end user,
that job is left to the HTML. Here is the appropriate
HTML to keep the end user informed of what they are
supposed to be seeing, and what action to take in
case something fails.
<!-- HTML applet snippet -->
<applet
class='...'
alt='This applet requires Java enabled, see you System
Administrator!'
>
This Applet uses the Java Plug-In. Get it free at www.java.com.
</applet>
<!-- End HTML applet snippet -->
HTH
Andrew T.