Internet Explorer 6.0+

Click the Tools menu.
Select Internet Options.
Click the Security tab.
Click the Custom Level button.
Scroll down until you see the ‘Scripting’ section. Select the ‘Enable’ radio button for ‘Active Scripting.’
Click the OK button.
If you see a confirmation window, click the Yes button.

Firefox 3.6+

Click the Tools menu.
Select Options.
Click the Content tab.
Select the ‘Enable JavaScript’ checkbox.
Click the OK button.

Safari 2 or 3

Click the Safari menu.
Select Preferences.
Click the Security tab.
Select the ‘Enable JavaScript’ checkbox.

Upgrading your browser or installing new security software or security patches may affect your JavaScript settings.