You can enable Javascript on a Mac by going into your browser's Preferences menu. In Safari, you'll find the Javascript option in the Security tab.

You can enable JavaScript in your iPhone's Settings app to improve website appearance in your Safari browser.

In the previous lesson, I showed you how to do a simple image rollover. In the real world, however, it’s rare that you’ll ever have one rollover on a page. In this column, I’ll show you how to add ...