#focus{width:685px;height:500px; margin:0 auto 30px; overflow:hidden;position:relative; background:#ffffff;}
#focus ul{height: auto;position:absolute;}
#focus ul li{float:left;width:685px; height:auto;overflow:hidden;position:relative;background:#FFF;}
#focus ul li div{position:absolute;overflow:hidden;}
#focus .btnBg{position:absolute;width:680px;height:20px;left:0;bottom:0;background:#ccc;}
#focus .btn{position:absolute;width:650px;height:10px;padding:5px 10px;right:0;bottom:0;text-align: center;}
#focus .btn span{display:inline-block;_display:inline;_zoom:1;width:25px;height:10px;_font-size:0;margin-left:5px;cursor:pointer;background:#94B815;}
#focus .btn span.on{background:#fff;}
#focus .preNext{width:45px;height:100px;position:absolute;top:50%;background:url(/img/sprite.png) no-repeat 0 0;cursor:pointer;}
#focus .pre{left:0;}
#focus .next{right:0;background-position:right top;}
#focus img{ width:100%; height:100%;}

/*#picw { width:685px; height:500px; overflow:hidden; }*/