.mainbox{    overflow:hidden;    position:relative;}
.flashbox{   overflow:hidden;    position:relative;}
.imagebox{    text-align:right;position:relative;z-index:999;}
.bitdiv{display:inline-block;width:18px;height:18px;margin:0 10px 10px 0px;cursor:pointer;float:right;}
.defimg{background-image:url(../zxpic/02.png)}
.curimg{background-image:url(../zxpic/01.png)}