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Is it a Netscape bug?

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Hi Friends,
I am trying to run a signed applet in an html using the EMBED and OBJECT Tag.
I have put my applet in a jar, signed the jar and put it in a html. I then call a few methods on this applet through Javascript:
It works fine in IE. I am able to run and get the results.
When i am using Netscape 4.77 it is giving me this error in javascript:
JavaScript Error: file:/C|/rohit/sec/pass/pass-ns.html, line 9:
no applet with index 9017408
Also after this error if i try and reload the page netscape hangs and i have to then go to the NT Taskmanager and kill the netscape.exe process to begin again.
I have no idea why is it not able to find the applet from javascript.
Is this the problem with embed tag.
The html is as follows:
You can try even without a signed jar with a dummy method in the applet that returns some string.
The html is as follows:
<SCRIPT ID=clientEventHandlersJS LANGUAGE=javascript>
function button1_onclick()
var chksum = document.applets[0].retchksum();
var ofile = document.applets[0].retofile();
document.forms[0].txtchksum.value = chksum;
document.forms[0].txtofile.value = ofile;

<OBJECT classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93"
WIDTH = 0 HEIGHT = 0 NAME = "TestApplet" ALIGN = middle VSPACE = 0 HSPACE = 0 codebase=",3,0,0">;
<PARAM NAME = CODE VALUE = "MyComApp.class" >
<PARAM NAME = ARCHIVE VALUE = "rohitjar.jar" >
<PARAM NAME="type" VALUE="application/x-java-applet;version=1.3">
<PARAM NAME="scriptable" VALUE="true">
WIDTH = 0 HEIGHT = 0 ALIGN = middle VSPACE = 0 HSPACE = 0
CODE = "MyComApp.class"
ARCHIVE = "rohitjar.jar"
NAME = "tedt"
scriptable = true
<H1>Business logic Tesing with Hidden Trusted Applets</H1>
Enter the File name with the path:<INPUT type = "text" name=text1>
<INPUT id=button1 type=button value=Process.. name=button1 LANGUAGE=javascript onclick="return button1_onclick()">
Check Sum using CRC32 :<INPUT TYPE = TEXT NAME = txtchksum>
Compressed Output File:<INPUT TYPE = TEXT NAME = txtofile>
Can anybody please help me with this.

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