title: Detect client jre from web browser
body: <p>I want to organize print file operation from my web application. I think that best way - print it from applet. But before run applet, i must install jre to client machine.</p>
  
  <p>Is there any way to detect from web application - is client machine have installed jre?</p>
  
  <p>This feature needs to show some message if jre not available.</p>
  
  <p>I think that answer on my question is "No", but hoping to hear a different answer i write here...</p>