.backtop{width:42px;height:auto;right:0px;top:82px;top:130px;position:fixed;z-index: 90000;}
a#customerservice{width:42px;height:42px;display:block;background: url("/themes/370/images/iconbt.png") 0 0 no-repeat;}
a#fullback{width:42px;height:42px;display:none;background: url("/themes/370/images/iconbt.png") 0 -84px no-repeat;}
a#fullback:hover{background-position:0 -42px;}