Please see URL: http://caspca.org/wordpress/event/crafts-for-critters/

For the previous/next links, the actual name of the event is displayed (in the main post, not the sidebar widget). I don't think this is terribly intuitive to the viewer. I would like to replace the event titles with more generic "previous event" and "next event" links. I don't know enough .php to know how to modify the code:

<div class="navlink previous"><?php tribe_previous_event_link();?></div>

<div class="navlink next"><?php tribe_next_event_link();?></div>
Can someone please specify exactly how to modify?

Thank you,