Works great in Firefox, crashes IE6 on 3 different Windows

Hello,
At work we are looking to purchase a mainframe terminal emulator applet which gathers parameters through JavaScript.
Some of these parameters are sensitive, and we wish to keep them hidden, particularly from doing "View Source" in the web page.
I tried to demo a technique using two applets on the same page: one applet will "set" an INPUT TYPE="HIDDEN" value and the other will "get" the (sensitive) JavaScript values
and use them.
To control the order, the first applet writes the second applet's <APPLET> tag dynamically.
The technique works great using the 1.5 plugin in Firefox on Windows ME, Windows XP Pro SP2 and Windows 2000 Server. It also crashes badly Internet Explorer 6 on the same machines, as soon as you try to launch the second applet.
Hang, freeze for 5 minutes, CTR-ALT-DELETE. Pretty bad.
I tried recompiling with javac -source 1.4 and get the same.
I tried recompiling with javac -source 1.3 and get the same.
Below is the complete code (one HTML file and two applets). You can also download the compiled project with source at:
http://www.quadmore.com/applet2/applet2.zip
We control our environments, but need to use IE. Any fix or workaround would be greatly appreciated.
Thanks!
Bert
(begin JSjava.java)
import java.applet.*;
import java.awt.event.*;
import java.awt.*;
import netscape.javascript.*;
public class JSjava extends Applet implements ActionListener
     Button b1;
     TextField tfuser;
     TextField tfpass;
     JSObject win;
     public void init()
          setLayout(new FlowLayout());
          tfuser = new TextField(10);
          tfpass = new TextField(10);
          b1 = new Button("vers la page web");
          b1.addActionListener(this);
          add(tfuser);
          add(tfpass);
          add(b1);
     public void actionPerformed(ActionEvent ae)
          if (ae.getSource() == b1)
               // send TO FORM
               JSObject win = (JSObject)JSObject.getWindow(this);
               JSObject outputLabel;
               win.eval("setHTMLInputTextUser('"+tfuser.getText()+"');");
               win.eval("setHTMLInputTextPassword('"+tfpass.getText()+"');");
               //lancer le deuxi�me applet ici
               try
                    outputLabel = (JSObject) win.eval("document.getElementById('lblOutputText')");
                    outputLabel.setMember("innerHTML","<APPLET NAME=JS2 CODE=JSjavatwo.class MAYSCRIPT WIDTH=200 HEIGTH=200></APPLET>");
               catch(Exception e)
                    e.printStackTrace();
(end JSjava.java)
(begin test.html)
<html>
<head>
     <SCRIPT>
          var s;
          var s2;
          function getHTMLInputTextUser()
               return window.document.dynamic_hidden_values.secretusername.value;
          function setHTMLInputTextUser(s)
               window.document.dynamic_hidden_values.secretusername.value = s;
          function getHTMLInputTextPassword()
               return window.document.dynamic_hidden_values.secretpassword.value;
          function setHTMLInputTextPassword(s2)
               window.document.dynamic_hidden_values.secretpassword.value = s2;
          function showHiddenValues()
               alert('The user name is...' + window.document.dynamic_hidden_values.secretusername.value + ' and the password is...' + window.document.dynamic_hidden_values.secretpassword.value);
     </SCRIPT>
</head>
<body>
     <form name="dynamic_hidden_values" method="post">
          <input type="hidden" name="secretusername" value="">
          <input type="hidden" name="secretpassword" value="">
          <input type="button" value="Show the current values" onClick='showHiddenValues();'>
     </form>
     <APPLET NAME="JS" CODE="JSjava.class" MAYSCRIPT WIDTH="200" HEIGTH="200"></APPLET>
     <div id="lblOutputText">�</div>
</body>
</html>
(end test.html)
(begin JSjavatwo.java)
import java.applet.*;
import java.awt.event.*;
import java.awt.*;
import netscape.javascript.*;
public class JSjavatwo extends Applet implements ActionListener
     Button b2;
     TextField tfuser;
     TextField tfpass;
     JSObject win;
     public void init()
          setLayout(new FlowLayout());
          tfuser = new TextField(10);
          tfpass = new TextField(10);
          b2 = new Button("de la page web");
          b2.addActionListener(this);
          add(tfuser);
          add(tfpass);
          add(b2);
     public void actionPerformed(ActionEvent ae)
          if (ae.getSource() == b2)
               // receive FROM FORM
               JSObject win = (JSObject)JSObject.getWindow(this);
               tfuser.setText((String)win.eval("getHTMLInputTextUser();"));
               tfpass.setText((String)win.eval("getHTMLInputTextPassword();"));
(begin JSjavatwo.java)

There is a mention in the "Core Java" Vol.1 book by Cay Horstmann that 2 applets from the same codebase can communicate with each other, but this is not a good solution for us as one of the applets will be purchased.
It has also been suggested that sub-classing the purchased applet might be possible, but of course that would be a no-cab-do if the inheritance was flagged as "final".

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