*html{background-image:url(about:blank);background-attachment:fixed;}/*解决IE6下滚动抖动的问题*/
#tbox{width:54px; float:right; position:fixed; right:50px; bottom:15px;
_position:absolute;
_bottom:auto;
_top:expression(eval(document.documentElement.scrollTop+document.documentElement.clientHeight-this.offsetHeight-(parseInt(this.currentStyle.marginTop,10)||0)-(parseInt(this.currentStyle.marginBottom,10)||0)));
_margin-bottom:15px;
}/*解决IE6下不兼容 position:fixed 的问题*/
#gotop{ width:54px; height:54px; background:url("icon3.jpg")/*tpa=http://www.lan-service.com.cn/public/Home/images/icon3.jpg*/ no-repeat; display:block; cursor:pointer;}
#gotop:hover{ width:54px; height:54px; background:url("icon2.jpg")/*tpa=http://www.lan-service.com.cn/public/Home/images/icon2.jpg*/ no-repeat; display:block; cursor:pointer;}