Platform : Win2000/Solaris(sparc)
Browser : Netscape 4.7
Plugin : Java plugin 1.3.1

Problem :

1) Applet communicates with javascript via LiveConnect, it executes without
any problem in Netscape 4.7.

2) After installing the Java Plugin 1.3.1 in Netscape 4.7 the applet aborts
with an error message "getMember does not support self.document.form1".
    
Steps to reproduce

1) An applet program which communicates with javascript through JSObject of
LiveConnect. (TestApplet.java - attached)
    
2) A HTML file for executing applet program in Netscape 4.7 without plugin embedded in it(test.html - attached).

3) A HTML file for executing applet program in Netscape 4.7 with Java Plugin 1.3.1 embedded in it(testPlugin.html - attached).
    
Results after simulation

1) "test.html" executes the applet program without any problem.

2)"testPlugin.html" aborts the applet program with an error message of
"getMember does not support self.document.form1"

Tested Environments

1) Simulation has been done in Win2000 and Solaris sparc machine.
2) Simulation has been done in Netscape4.7 with versions of
Java Plugin 1.2, 1.3, 1.3.1.