Microsoft Internet Explorer (6.0)
Select 'Internet Options' from the 'Tools' menu.
Click on the 'Security' tab.
Click on 'Custom Level'.
Scroll down to the 'Scripting' section.
Under 'Active Scripting', set to 'Enable'.
Click on 'OK'.

Microsoft Internet Explorer (7.0)
Select 'Internet Options' from the 'Tools' menu.
Click on the 'Security' tab.
Click on 'Custom Level'.
Scroll down to the 'Scripting' section.
Under 'Active Scripting', set to 'Enable'.
Click on 'OK'.
Click 'Yes' if a confirmation box appears.
Click on 'OK'.
Close the window and reload the page.

Mozilla Firefox (1.0 final release and earlier)
Proceed to the 'Tools' menu.
Select 'Options'.
Select the 'Web Features' icon on the left.
Check the box that indicates 'Enable JavaScript'.
Click on 'OK'.

Mozilla Firefox (2.x)
Proceed to the 'Tools' menu.
Select 'Options'.
Select 'Content' under 'Options'.
Check the box that indicates 'Enable JavaScript'.
Click the 'Advanced' button to open the Advanced JavaScript Options box.
Check the appropriate boxes under 'Allow scripts to'.
Click on OK'.