/* main */
#main1{position:relative;margin:5px auto;}
#main1 .box{margin:0px auto;position:relative; width:789px; height:592px;}
#main1 .box img{position:relative;left:0px;top:0px;opacity:0;filter:alpha(opacity=0); border:none;}
#main1 .btnLeft{width:35px;height:57px;position:absolute;left:25px;top:296px;background:url(../images/left_ar.png) no-repeat left center; z-index:30;opacity:0.6;filter:alpha(opacity=60);}
#main1 .btnRight{width:35px;height:57px;position:absolute;right:25px;top:296px;background:url(../images/right_ar.png) no-repeat left center; z-index:30;opacity:0.6;filter:alpha(opacity=60);}