When a visitor clicks on the link, Explorer's Add Favorite dialogue automatically pops opens, inviting your visitor to add your site to their bookmarks (called 'favorites' in Explorer).
With this little script you can catch all the JavaScript errors and throw them away. When your browser find a JavaScript error the yellow triangle will not be displayed so the errors will be invisible for the users.
This shows how to have a test run using confirm alerts to have the user enter in TRUE or FALSE for each question.
The results are computed and then given (via a popup) to the user.
This file shows a very simple example of how to create a button that does something JavaScript-like in nature when it is clicked. The alert() function is predefined: we could have made our own function and then called it upon the onClick event.