Handling Virtual Page Changes
If your site "changes pages" without actually going to a new url,
using for example AJAX, you can inform Chartbeat about these new pages
by using the virtualPage() function.
For example, if the page the user is loading
is http://example.com/page1, but the page changes to the
virtual page http://example.com/page2, you should call this:
pSUPERFLY.virtualPage("/page2", "New Title");
The second parameter is the title for the new virtual page, and is optional.
This can also be used to track page "changes" inside a Flash application by
calling this function through the
ExternalInterface class.