Key Codes

BACKSPACE - 8.
CAPSLOCK - 20
CONTROL - 17
DELETEKEY - 46
DOWN - 40
END - 35
ENTER - 13
ESCAPE - 27
HOME - 36
INSERT - 45
LEFT - 37
PGDN - 34
PGUP - 33
RIGHT - 39
SHIFT-16
SPACE-32
TAB - 9
UP - 38

Refer following link for all the keycodes:
http://livedocs.adobe.com/flash/mx2004/main_7_2/wwhelp/wwhimpl/common/html/wwhelp.htm?context=Flash_MX_2004&file=00001113.html