javascript 窗口位置 读书笔记

兼容IE6的position:fixed

<div style="position:fixed; background-color:#ff0; top:10px; left:50%; _position:absolute; _top:expression(document.documentElement.scrollTop+(parseInt(this.currentStyle.marginTop,10)||0));">漂浮</div>

获取浏览器窗口相对于屏幕位置

leftPos = (typeof window.screenLeft == "number") ? window.screenLeft : window.screenX;

topPos = (typeof window.screenTop == "number") ? window.screenTop : window.screenY;