For Mac OS users, there is a system setting that may not allow you to tab onto several types of elements in a web page. To change this setting:
Thurs: 9am vs Muenster @ Bowie, Fri: 3:45 vs Clyde @ Graford, 6:00 vs Vernon @ Graford, Sat: 1:30 vs Decatur @ Henrietta, 3:45 vs Bridgeport @ Henrietta.