how to Override default policy file so that applet can execute

I have developed a signed applet that works fine when run from the console using this command

C:\Documents and Settings\aneez_backer>appletviewer -J-Djava.security.policy=policy.jp SignedApplet.html

where

policy.jp : is the policy file

SignedApplet.html : is the file that contains the call to the applet

now when I run this html file through webbrowser it gives AccessControlExceptions.

Please tell me how should I override the default security policy files of java so that I can run my applet in the browser also.

[561 byte] By [aneez_backera] at [2007-10-3 0:30:39]