Use the following table to find out how to enable:

BROWSER SEQUENCE
Netscape 3.0 On menu-bar, go to 'Options, Network Preferences, Languages' and check 'Enable JavaScript' and/or 'Enable Java'.
Internet Explorer 3.0 On menu-bar, go to 'View, Options, Security' and check 'Enable Active-X Controls and Pluggins', 'Run Active-X Scripts', 'Allow Downloading of Active Content' and/or 'Enable Java Programs'.
Opera 3.0 On menu-bar, go to 'Preferences, Multimedia' and check 'Enable Scripting Language' '