用键盘方向键实现翻页

  
    

   
     <
   
     script type
   
     =
   
     "
   
     text/javascript
   
     "
   
     >
   
     
document.onkeydown 
   
     =
   
      nextpage;

   
     var
   
      prevpage
   
     =
   
     "
   
     1.htm
   
     "
   
     ;

   
     var
   
      nextpage
   
     =
   
     "
   
     3.htm
   
     "
   
     ;

   
     function
   
      nextpage(event)
{
 event 
   
     =
   
      event 
   
     ?
   
      event : (window.event 
   
     ?
   
      window.event : 
   
     null
   
     );
 
   
     if
   
      (event.keyCode 
   
     ==
   
      
   
     37
   
     ) location 
   
     =
   
      nextpage; 
   
     //
   
     方向键→
   
     

   
      
   
     if
   
      (event.keyCode 
   
     ==
   
      
   
     39
   
     ) location 
   
     =
   
      prevpage; 
   
     //
   
     方向键←
   
     

   
      
   
     //方向键↑为38，方向键↓为40
   
     

   
     }

   
     <
   
     /
   
     script>