如何在网页上用javascript取得系统屏幕大小,如是800*600还是1024*768?

如何在网页上用javascript取得系统屏幕大小,如是800600还是1024768?
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在javascript中得到当前窗口的高和宽

 1<body><script language="JavaScript">   
 2var s = "网页正文部分宽:"+ document.body.clientWidth;   
 3s += "\r\n网页正文部分高:"+ document.body.clientHeight;   
 4s += "\r\n网页正文部分上:"+ window.screenTop;   
 5s += "\r\n网页正文部分左:"+ window.screenLeft;   
 6s += "\r\n屏幕分辨率的高:"+ window.screen.height;   
 7s += "\r\n屏幕分辨率的宽:"+ window.screen.width;   
 8s += "\r\n屏幕可用工作区高度:"+ window.screen.availHeight;   
 9s += "\r\n屏幕可用工作区宽度:"+ window.screen.availWidth;   
10alert(s);   
11</script>   
12\---------------------------------------------------------------   
13  
14对,不过window.screenTop中的window也可不要,呵呵!!!楼主不妨一试   
15\---------------------------------------------------------------   
16  
17alert(window.screen.width);   
18alert(screen.height);</body>
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