top、clientTop、scrollTop、offsetTop
图示说明如下：
<html><head><title>51windows.Net </title><meta http-equiv=”Content-Type” content=”text/html; charset=gb2312″><style type=”text/css”></style></head><body><SCRIPT LANGUAGE=”JavaScript”>var s = “”;s += “\r\n网页可见区域宽：”+ document.body.clientWidth;s += “\r\n网页可见区域高：”+ document.body.clientHeight;s += “\r\n网页可见区域宽：”+ document.body.offsetWidth +” (包括边线的宽)”;s += “\r\n网页可见区域高：”+ document.body.offsetHeight +” (包括边线的宽)”;s += “\r\n网页正文全文宽：”+ document.body.scrollWidth;s += “\r\n网页正文全文高：”+ document.body.scrollHeight;s += “\r\n网页被卷去的高：”+ document.body.scrollTop;s += “\r\n网页被卷去的左：”+ document.body.scrollLeft;s += “\r\n网页正文部分上：”+ window.screenTop;s += “\r\n网页正文部分左：”+ window.screenLeft;s += “\r\n屏幕分辨率的高：”+ window.screen.height;s += “\r\n屏幕分辨率的宽：”+ window.screen.width;s += “\r\n屏幕可用工作区高度：”+ window.screen.availHeight;s += “\r\n屏幕可用工作区宽度：”+ window.screen.availWidth;alert(s);</SCRIPT></body></html>
[Ctrl+A 全选 注:引入外部Js需再刷新一下页面才能执行]
