How to detect JRE with Javascript and without any help of class file

Please tell me how to detect JRE with using the Applet file. Is it possible to detect only through Javascript
[116 byte] By [me2techa] at [2007-11-27 9:47:01]
# 1
It is possible to detect the Sun JRE using only Javascript without any class file.However, it is rather complicated due to difficulties with Internet Explorer. http://forum.java.sun.com/thread.jspa?threadID=5177843&tstart=15
Eric11a at 2007-7-12 23:58:28 > top of Java-index,Desktop,Deploying...