javascript 获取客户端浏览器的分辨率

<SCRIPT LANGUAGE="JavaScript">
var s = "";
s += "<br>网页可见区域宽："+ document.body.clientWidth;
s += "<br>网页可见区域高："+ document.body.clientHeight;
s += "<br>网页可见区域宽："+ document.body.offsetWidth +" (包括边线和滚动条的宽)";
s += "<br>网页可见区域高："+ document.body.offsetHeight +" (包括边线的宽)";
s += "<br>网页正文全文宽："+ document.body.scrollWidth;
s += "<br>网页正文全文高："+ document.body.scrollHeight;
s += "<br>网页被卷去的高："+ document.body.scrollTop;
s += "<br>网页被卷去的左："+ document.body.scrollLeft;
s += "<br>网页正文部分上："+ window.screenTop;
s += "<br>网页正文部分左："+ window.screenLeft;
s += "<br>屏幕分辨率的高："+ window.screen.height;
s += "<br>屏幕分辨率的宽："+ window.screen.width;
s += "<br>屏幕可用工作区高度："+ window.screen.availHeight;
s += "<br>屏幕可用工作区宽度："+ window.screen.availWidth;
s += "<br>你的屏幕设置是 "+ window.screen.colorDepth +" 位彩色";
s += "<br>你的屏幕设置 "+ window.screen.deviceXDPI +" 像素/英寸";
document.write(s);
</SCRIPT>