* {
    padding: 0px;
    margin: 0px;
}

*html {
    background-image: url(about:blank);
    background-attachment: fixed;
}

/*���IE6�¹�������������*/
#tbox {
    width: 54px;
    float: right;
    position: fixed;
    right: 20px;
    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;
}


#pinglun,
#xiangguan,
#gotop {
    width: 54px;
    height: 56px;
    background: url(../images/top_icon.png) no-repeat;
    display: block;
}

#pinglun {
    background-position: 0 0;
}

#xiangguan {
    background-position: 0 -59px;
}

#gotop {
    background-position: 0 -118px;
}