一些小说或图片类网站，为了方便大家阅读，往往会加入利用键盘方向键进行翻页、返回上一级、返回目录、回首页等功能。一个小小的人性化功能，给用户很大的方便，所以如果你要做类似的网站，建议还是加上哟。
功能：
按下向左方向键转到:www.baidu.com
按下向右方向键转到:www.google.com
按下向回车键转到:www.aa25.cn
按下ctrl+enter回车键转到:www.zhuna.cn
实现本功能的javascript代码：
<script language=javascript>
document.onkeydown=nextpage
var prevpage="http://www.baidu.com" //向左
var nextpage="http://www.google.com" //向右
var bookpage="http://www.aa25.cn" //回车
function nextpage(event)
{
event = event ? event : (window.event ? window.event : null);
if (event.keyCode==13) location=bookpage;//回车
if (event.keyCode==37) location=prevpage;//向左
if (event.keyCode==39) location=nextpage;//向右
if (event.ctrlKey && event.keyCode==13) {alert("你点了 ctrl + enter ,现在转向到 标准之路."); location="http://www.aa25.cn";}
//同时按下键盘多个键的事件情况
}
</script>
附：键盘键码值
字母和数字键的键码值(keyCode)
按键 键码 按键 键码 按键 键码 按键 键码
A 65 J 74 S 83 1 49
B 66 K 75 T 84 2 50
C 67 L 76 U 85 3 51
D 68 M 77 V 86 4 52
E 69 N 78 W 87 5 53
F 70 O 79 X 88 6 54
G 71 P 80 Y 89 7 55
H 72 Q 81 Z 90 8 56
I 73 R 82 0 48 9 57
数字键盘上的键的键码值(keyCode) 功能键键码值(keyCode)
按键 键码 按键 键码 按键 键码 按键 键码
0 96 8 104 F1 112 F7 118
1 97 9 105 F2 113 F8 119
2 98 * 106 F3 114 F9 120
3 99 + 107 F4 115 F10 121
4 100 Enter 108 F5 116 F11 122
5 101 - 109 F6 117 F12 123
6 102 . 110
7 103 / 111
控制键键码值(keyCode)
按键 键码 按键 键码 按键 键码 按键 键码
BackSpace 8 Esc 27 Right Arrow 39 -_ 189
Tab 9 Spacebar 32 Dw Arrow 40 .> 190
Clear 12 Page Up 33 Insert 45 /? 191
Enter 13 Page Down 34 Delete 46 `~ 192
Shift 16 End 35 Num Lock 144 [{ 219
Control 17 Home 36 ;: 186 \| 220
Alt 18 Left Arrow 37 =+ 187 ]} 221
Cape Lock 20 Up Arrow 38 ,< 188 '" 222
多媒体键码值(keyCode)
按键 键码
音量加 175
音量减 174
停止 179
静音 173
浏览器 172
邮件 180
搜索 170
收藏 171
keycode 0 =
keycode 1 =
keycode 2 =
keycode 3 =
keycode 4 =
keycode 5 =
keycode 6 =
keycode 7 =
keycode 8 = BackSpace
keycode 9 = Tab
keycode 10 =
keycode 11 =
keycode 12 = Clear
keycode 13 = Enter
keycode 14 =
keycode 15 =
keycode 16 = Shift_L
keycode 17 = Control_L
keycode 18 = Alt_L
keycode 19 = Pause
keycode 20 = Caps_Lock
keycode 21 =
keycode 22 =
keycode 23 =
keycode 24 =
keycode 25 =
keycode 26 =
keycode 27 = Esc Escape
keycode 28 =
keycode 29 =
keycode 30 =
keycode 31 =
keycode 32 = Space
keycode 33 = Page Up
keycode 34 = Page Down
keycode 35 = End
keycode 36 = Home
keycode 37 = Left Arrow
keycode 38 = Up Arrow
keycode 39 = Right Arrow
keycode 40 = Down Arrow
keycode 41 = Select
keycode 42 = Print
keycode 43 = Execute
keycode 44 =
keycode 45 = Insert
keycode 46 = Delete
keycode 47 = Help
keycode 48 = 0 )
keycode 49 = 1 !
keycode 50 = 2 @
keycode 51 = 3 #
keycode 52 = 4 $
keycode 53 = 5 %
keycode 54 = 6 ^
keycode 55 = 7 &
keycode 56 = 8 *
keycode 57 = 9 (
keycode 58 =
keycode 59 =
keycode 60 =
keycode 61 =
keycode 62 =
keycode 63 =
keycode 64 =
keycode 65 = a A
keycode 66 = b B
keycode 67 = c C
keycode 68 = d D
keycode 69 = e E
keycode 70 = f F
keycode 71 = g G
keycode 72 = h H
keycode 73 = i I
keycode 74 = j J
keycode 75 = k K
keycode 76 = l L
keycode 77 = m M
keycode 78 = n N
keycode 79 = o O
keycode 80 = p P
keycode 81 = q Q
keycode 82 = r R
keycode 83 = s S
keycode 84 = t T
keycode 85 = u U
keycode 86 = v V
keycode 87 = w W
keycode 88 = x X
keycode 89 = y Y
keycode 90 = z Z
keycode 91 =
keycode 92 =
keycode 93 =
keycode 94 =
keycode 95 =
keycode 96 = KP_0
keycode 97 = KP_1
keycode 98 = KP_2
keycode 99 = KP_3
keycode 100 = KP_4
keycode 101 = KP_5
keycode 102 = KP_6
keycode 103 = KP_7
keycode 104 = KP_8
keycode 105 = KP_9
keycode 106 = KP_* KP_Multiply
keycode 107 = KP_+ KP_Add
keycode 108 = KP_Enter KP_Separator
keycode 109 = KP_- KP_Subtract
keycode 110 = KP_. KP_Decimal
keycode 111 = KP_/ KP_Divide
keycode 112 = F1
keycode 113 = F2
keycode 114 = F3
keycode 115 = F4
keycode 116 = F5
keycode 117 = F6
keycode 118 = F7
keycode 119 = F8
keycode 120 = F9
keycode 121 = F10
keycode 122 = F11
keycode 123 = F12
keycode 124 = F13
keycode 125 = F14
keycode 126 = F15
keycode 127 = F16
keycode 128 = F17
keycode 129 = F18
keycode 130 = F19
keycode 131 = F20
keycode 132 = F21
keycode 133 = F22
keycode 134 = F23
keycode 135 = F24
keycode 136 = Num_Lock
keycode 137 = Scroll_Lock
keycode 138 =
keycode 139 =
keycode 140 =
keycode 141 =
keycode 142 =
keycode 143 =
keycode 144 =
keycode 145 =
keycode 146 =
keycode 147 =
keycode 148 =
keycode 149 =
keycode 150 =
keycode 151 =
keycode 152 =
keycode 153 =
keycode 154 =
keycode 155 =
keycode 156 =
keycode 157 =
keycode 158 =
keycode 159 =
keycode 160 =
keycode 161 =
keycode 162 =
keycode 163 =
keycode 164 =
keycode 165 =
keycode 166 =
keycode 167 =
keycode 168 =
keycode 169 =
keycode 170 =
keycode 171 =
keycode 172 =
keycode 173 =
keycode 174 =
keycode 175 =
keycode 176 =
keycode 177 =
keycode 178 =
keycode 179 =
keycode 180 =
keycode 181 =
keycode 182 =
keycode 183 =
keycode 184 =
keycode 185 =
keycode 186 =
keycode 187 = =+
keycode 188 = ,<
keycode 189 = -_
keycode 190 = .>
keycode 191 = /?
keycode 192 = `~
keycode 193 =
keycode 194 =
keycode 195 =
keycode 196 =
keycode 197 =
keycode 198 =
keycode 199 =
keycode 200 =
keycode 201 =
keycode 202 =
keycode 203 =
keycode 204 =
keycode 205 =
keycode 206 =
keycode 207 =
keycode 208 =
keycode 209 =
keycode 210 = plusminus hyphen macron
keycode 211 =
keycode 212 = copyright registered
keycode 213 = guillemotleft guillemotright
keycode 214 = masculine ordfeminine
keycode 215 = ae AE
keycode 216 = cent yen
keycode 217 = questiondown exclamdown
keycode 218 = onequarter onehalf threequarters
keycode 219 = [{
keycode 220 = \|
keycode 221 = ]}
keycode 222 = '"
keycode 223 =
keycode 224 =
keycode 225 =
keycode 226 =
keycode 227 = multiply division
keycode 228 = acircumflex Acircumflex
keycode 229 = ecircumflex Ecircumflex
keycode 230 = icircumflex Icircumflex
keycode 231 = ocircumflex Ocircumflex
keycode 232 = ucircumflex Ucircumflex
keycode 233 = ntilde Ntilde
keycode 234 = yacute Yacute
keycode 235 = oslash Ooblique
keycode 236 = aring Aring
keycode 237 = ccedilla Ccedilla
keycode 238 = thorn THORN
keycode 239 = eth ETH
keycode 240 = diaeresis cedilla currency
keycode 241 = agrave Agrave atilde Atilde
keycode 242 = egrave Egrave
keycode 243 = igrave Igrave
keycode 244 = ograve Ograve otilde Otilde
keycode 245 = ugrave Ugrave
keycode 246 = adiaeresis Adiaeresis
keycode 247 = ediaeresis Ediaeresis
keycode 248 = idiaeresis Idiaeresis
keycode 249 = odiaeresis Odiaeresis
keycode 250 = udiaeresis Udiaeresis
keycode 251 = ssharp question backslash
keycode 252 = asciicircum degree
keycode 253 = 3 sterling
keycode 254 = Mode_switch
