Other uses include demos and videos. This method can also be useful for pages that don't receive a lot of traditional conversions. If your traffic is fairly low, and you're not getting a lot of people through to your traditional conversion page (say, a thank you page at the end of a sign-up flow) you may wish to lower the conversion bar and count conversions based on time-on-page. Adding the code

Time on page as a conversion goal
Conversions aren't always associated with actions in the browser - a user who finishes reading an article, for example, won't trigger an event in the browser to indicate that she's done. In this case, it may be useful to count a conversion after the page has been loaded in the browser for a certain amount of time. This way, users who stay on the page for 20 seconds (or any number that you set) will trigger a conversion in Website Optimizer.
All that's required to implement this method is the addition of the code below, in place of the Conversion code provided in the Website Optimizer tool. This new code should be pasted into the page after your tracking script, and immediately before the closing.