js页面的全屏展示和退出全屏显示

 1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">  
 2 <HTML>   
 3     <HEAD>      
 4     <TITLE> New Document </TITLE>      
 5     <SCRIPT LANGUAGE="javascript">           
 6         <!-- Begin KeyDown          
 7         function showKeyDown(evt) {               
 8             evt = (evt) ? evt : window.event;              
 9             if (evt.keyCode == 27) { 
10                 window.close(self);
11             }           
12         }           
13         // End -->         
14         <!-- Begin onClick          
15         if (this.name!='fullscreen'){               
16             window.open(location.href,'fullscreen','fullscreen,scrollbars');
17         }           
18         // End -->     
19     </script>    
20     </HEAD>   
21     <BODY  onLoad="document.onkeydown = showKeyDown">      
22         <a onClick="window.close(self)">返回正常效果显示</a>   
23     </BODY>  
24 </HTML>