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There may be times you wish to enable or disable your browsers ability to deal with JavaScript, sometimes known as JScript. Here are the step-by-step instructions for majority of the browsers. By the way, Java and JavaScript are two different things, so make sure that you're looking at the correct language.
Tip: You may loose some of the web page functionality by disabling JavaScript.
Navigator 3.x
Go to "Options | Network Preferences..." from the main menu
Change to the "Languages" tab
To enable: make sure "Enable JavaScript" check box is checked
To disable: make sure "Enable JavaScript" check box is unchecked
Restart the browser
Communicator 4.x
Go to "Edit | Preferences..." from the main menu
Select "Advanced" panel
To enable: make sure "Enable JavaScript" check box is checked.
To disable: make sure "Enable JavaScript" check box is unchecked.
Restart the browser
Explorer 3.x
Go to "View | Options..." from the main menu
Change to the "Security" tab
To enable: make sure "Run ActiveX scripts" check box is checked
To disable: make sure "Run ActiveX scripts" check box is unchecked
Restart the browser
Explorer 4.x
Go to "View | Internet Options..." from the main menu
Change to the "Security" tab
Select "Custom" and click on the "Settings..." button
To enable: make sure "Enable" is selected under "Active scripting"
To disable: make sure "Disable" is selected under "Active scripting"
Restart the browser
TIP: Simply reloading the page, rather than restarting the browser, maybe sufficient under some browser versions.