.a {width: 749px;height:170;margin:0px auto;}
.a .box{ width:749px; margin:0 auto; position:relative; overflow:hidden; height:170px;}
.a .picbox{ width:749px; height:170px; overflow:hidden; position:relative;}
.a .piclist{ height:170px;position:absolute; left:0px; top:0px}
.a .piclist li{margin-right:15px; padding:3px; float:left;}
.a .piclist li img{width:170px;height:170px;}
.a .swaplist{ position:absolute; left:-3000px; top:0px}
.a .og_prev,.og_next{ width:62px; height:62px; background:url(../images/ico2a.png) no-repeat; background:url(../images/ico26.png) no-repeat\9; position:absolute; top:55px; z-index:100; cursor:pointer;filter:alpha(opacity=70); opacity:0.7;}
.a .og_prev{ background-position:0 -61px; left:4px;}
.a .og_next{ background-position:0 0; right:4px;}