Problem while calling java function from html

Question

when i tried to call a java function from html i'm getting an error
object don't support this property.
what could be the reason.
This is my html.
I got this from this forum only.
My applet is accessing the system property "user.home".
I ran it in IE
<DIV id="dvObjectHolder">Applet comes here</DIV>
<br><br>
<script>
if(window.navigator.appName.toLowerCase().indexOf("netscape")!=-1){ // set object for Netscape:
     document.getElementById('dvObjectHolder').innerHTML = " <object ID='appletTest1' classid=\"java:test.class\"" +
"height=\"0\" width=\"0\" onError=\"changeObject();\"" +
          ">" +
"<param name=\"mayscript\" value=\"Y\">" +
"<param name=\"archive\" value=\"sTest.jar\">" +
"</object>";
}else if(window.navigator.appName.toLowerCase().indexOf('internet explorer')!=-1){ //set object for IE
     document.getElementById('dvObjectHolder').innerHTML = "<object ID='appletTest1' classid=\"clsid:8AD9C840-044E-11D1-B3E9-00805F499D93\"" +
          " height=\"0\" width=\"0\" >" +
          " <param name=\"code\" value=\"test.class\" />" +
     "<param name=\"archive\" value=\"sTest.jar\">" +
          " </object>"
</script>
<LABEL id="lblOutputText">This text will be replaced by the applet</LABEL>
<BR>
<input value="Javascript to java" type=button onClick="document.appletTest1.fromJavaScript()">

Answer 1

I tried this example using the repy given to an earlier post.
But its not working with me.
What i did in addition was adding plugin.jar to classpath to import netscape.javascript.*;
Let me add some more details
1) I'll add the stack trace
2) my java progrma
3) batch file to sign the applet.
1) This is the stack trace i don't know whether u will undertand this
load: class test.class not found.
java.lang.ClassNotFoundException: test.class
     at sun.applet.AppletClassLoader.findClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadCode(Unknown Source)
     at sun.applet.AppletPanel.createApplet(Unknown Source)
     at sun.plugin.AppletViewer.createApplet(Unknown Source)
     at sun.applet.AppletPanel.runLoader(Unknown Source)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
Caused by: java.io.FileNotFoundException: C:\FastranJava\AppletObject\bin\test\class.class (The system cannot find the path specified)
     at java.io.FileInputStream.open(Native Method)
     at java.io.FileInputStream.<init>(Unknown Source)
     at java.io.FileInputStream.<init>(Unknown Source)
     at sun.net.www.protocol.file.FileURLConnection.connect(Unknown Source)
     at sun.net.www.protocol.file.FileURLConnection.getInputStream(Unknown Source)
     at sun.applet.AppletClassLoader.getBytes(Unknown Source)
     at sun.applet.AppletClassLoader.access$100(Unknown Source)
     at sun.applet.AppletClassLoader$1.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     ... 10 more
Exception in thread "Thread-5" java.lang.NullPointerException
     at sun.plugin.util.GrayBoxPainter.showLoadingError(Unknown Source)
     at sun.plugin.AppletViewer.showAppletException(Unknown Source)
     at sun.applet.AppletPanel.runLoader(Unknown Source)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
2) Java Program
import netscape.javascript.*;
import java.applet.*;
public class test extends Applet
     private JSObject win;
     private JSObject outputLabel;
     private boolean buttonFromJavaClicked=false;
     checkJavaScriptEvent evt=new checkJavaScriptEvent();
     public void init()
          try
               evt.start();
               win=JSObject.getWindow(this);
               outputLabel=(JSObject)win.eval("document.getElementById('lblOutputText')");
               outputLabel.setMember("innerHTML", "<center><h1>From Init<br>Your Home directory" + System.getProperty("user.home") + "</h1></center>");
          catch(Exception e)
               e.printStackTrace();
     public void fromJavaScript()
          buttonFromJavaClicked=true;          
     public void fromJavaScript2()
          System.out.println("Started Form JavaScript2");
          try
               String strLbl="<center><h1>From JavaScript<br>Your Homedir:" + System.getProperty("user.home") + "</h1></center>";
               outputLabel.setMember("innerHTML", strLbl);
          catch(Exception e)
               e.printStackTrace();
     class checkJavaScriptEvent extends Thread
          public void run()
               while(true)
                    if(test.this.buttonFromJavaClicked)
                         System.out.println("OK buttonfromjava is true");
                         test.this.buttonFromJavaClicked=false;
                         fromJavaScript2();
                    try
                         Thread.sleep(3000);
                    catch(Exception e)
                         e.printStackTrace();
3) Batch file
del *.cer
del *.com
del *.jar
del *.class
javac -classpath ".;C:\Program Files\Java\jre1.5.0_06\lib\plugin.jar" test.java
keytool -genkey -keystore harm.com -keyalg rsa -dname "CN=Harm Meijer, OU=Technology, O=org, L=Amsterdam, ST=, C=NL" -alias harm -validity 3600 -keypass password -storepass password
jar cf0 test.jar *.class
jarsigner -keystore harm.com -storepass password -keypass password -signedjar sTest.jar test.jar harm
del *.class