javascript onkeydown实现键盘快捷键控制页面

IE only的鼠标左右键控制上一页下一页
<script type="text/javascript">
<!--
var preview_page = "14671.html";
var next_page = "14675.html";
var index_page = "index.html";
var article_id = "305";
var chapter_id = "14674";

function jumpPage() {
  if (event.keyCode==37) location=preview_page;
  if (event.keyCode==39) location=next_page;
  if (event.keyCode==13) location=index_page;
}
document.onkeydown=jumpPage;
<:/script>

<script>
//qidian
prevpage='1006900,20124741.aspx';
nextpage='1006900,20124757.aspx';
bookpage='/Book/1006900.aspx'
var prevpage;
var nextpage;
var bookpage;
function pageEvent(event) 
{
  event = event ? event : (window.event ? window.event : 
null); 
  if (event.keyCode==13)
  {
     location=bookpage
    return false;
  } 

  if (event.keyCode==37) location=prevpage

  if (event.keyCode==39) location=nextpage
}
document.onkeydown=pageEvent;
-->
</script>
来自经典的IE和firefox都兼容的
<script language="JavaScript"> document.onkeydown=nextpage; function nextpage(){ var event=document.all?window.event:arguments[0]; if (event.keyCode==37) location="1.htm"; if (event.keyCode==13) location="2.htm"; if (event.keyCode==39) location="3.htm"; } </script>
[Ctrl+A 全选 注:如需引入外部Js需刷新才能执行]