Is this a custom calendar module for Jevents?

We are upgrading a Joomla 1.5 site to Joomla 3.x. The current site has a calendar module on the page that does something really cool. When you toggle through the months, it displays the upcoming events in the content panel. Here is an example:

[url:4uoo90ra]http://landauclients.com/tempest/about-us/expo-attendance-calendar[/url:4uoo90ra]

You have to toggle backwards to October 2014 to see an example.

Is this a customized module for Jevents, or can I find it somewhere? I just don't want to take the time to upgrade it to 3.0 if it already exists.

Thanks,
Bonnie