#totop{position:fixed;bottom:0px;right:10px;z-index:999;width:43px; cursor:pointer; display:none;}
*html #totop{position:absolute;cursor:pointer;right:10px; display:none;top:expression(eval(document.documentElement.scrollTop+document.documentElement.clientHeight)-112+"px")}
#totop a{display:block;width:43px;height:43px;padding-top:48px;background:url(toTop.png) no-repeat;text-align:center;color:#888}
#totop a.cur{text-decoration:none;color:#3a9}