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:
Randall Seals, Superintendent
District Office
40096 Indian Springs Rd.
Oakhurst, CA 93644
559.642.1555 option #1
Fax: 559.296.2515
Jeanne Snow
Executive Assistant to the Superintendent