This page is testing whether search indexing robots follow URL links to popup windows generated by JavaScript. . If it was indexed, then this robot can, indeed, follow the link, because the file is not linked to by any other files anywhere on the site. To test whether this page was properly indexed, search for the code below. For more tests, see the List of Robot Tests.
If you're curious, you can see the linking file. For more robot testing information, see JavaScript Tests and Robot Tests.
Search Codes: RTest, RTestGood, RTest256, RTestGood256