JavaScript得到当前窗口的所有大小值

经常在网上查这些东西，先暂时把这些信息放到这里吧，以备用！

function a(){
        s = "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网页可见区域高："+ document.body.offsetWeight +" (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;
        s = "\r\n网页正文全文高："+ document.body.scrollHeight;
        alert(s);
    }