The following navigation utilizes arrow, enter, escape, and space bar key commands. Left and right arrows move through main tier links and expand / close menus in sub tiers. Up and Down arrows will open main tier menus and toggle through sub tier links. Enter and space open menus and escape closes them as well. Tab will move on to the next part of the site rather than go through menu items.
FOUNDATIONS OF ASTRONOMY 12TH EDITION by SEEDS, BACKMAN |
ISBN#:1133103766
ISBN13#:9781133103769
Access#:3055
Pages#:694