#tbox{width:110px; float:right; position:fixed; right:5px; bottom:60px;
_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*/
#duanxin,#gotop{ width:110px; height:41px; background:url(/images/duanxin.gif) no-repeat; display:block;}
#duanxin{ background-position:0 0;}
#gotop{ background-position:0 -46px;}