在页面左右一个悬浮div兼容IE6 IE7 8 9 Firefox chrome
#identifier-pannel { bottom: 345px; margin-left: 512px; position: fixed; _position: absolute; left: 50%; width: 110px; _top: expression(eval(document.documentElement.scrollTop || document.body.scrollTop) +eval(document.documentElement.clientHeight || document.body.clientHeight) -480 +'px'); z-index: 998; }