JavaScript & DHTML Cookbook

Appendix B. Keyboard Key Code Values

Key codes are numeric values that correspond to physical keys on the keyboard but do not necessarily correspond to a particular character. For example, the A key on the keyboard produces the same key code when pressed, even though its character code might be 65 (uppercase A) or 97 (lowercase a), depending on whether the Shift key is down at the same time. Key codes are not influenced by modifier keys. Character values (See Appendix A) may be read from the onkeypress event, while the key values, including navigation and function keys, are available from onkeydown and onkeyup events. Table B-1 lists all keys on a typical U. S. English keyboard and their corresponding key codes.

Table B-1. U.S. English keyboard and corresponding keycodes

Key	Key Value		Key	Key Value
Alt	18		F5	116
Arrow Down	40		F6	117
Arrow Left	37		F7	118
Arrow Right	39		F8	119
Arrow Up	38		F9	120
Backspace	8		F10	121
Caps Lock	20		F11	122
Ctrl	17		F12	123
Delete	46		Home	36
End	35		Insert	45
Enter	13		Num Lock	144
Esc	27		(NumPad) -	109
F1	112		(NumPad) *	106
F2	113		(NumPad) .	110
F3	114		(NumPad) /	111
F4	115		(NumPad) +	107
(NumPad) 0	96		P	80
(NumPad) 1	97		Q	81
(NumPad) 2	98		R	82
(NumPad) 3	99		S	83
(NumPad) 4	100		T	84
(NumPad) 5	101		U	85
(NumPad) 6	102		V	86
(NumPad) 7	103		W	87
(NumPad) 8	104		X	88
(NumPad) 9	105		Y	89
Page Down	34		Z	90
Page Up	33