a{cursor:pointer}
#slide_show{position:relative; width:684px}
.imageSlideshowHolder{width:684px; height:324px;  position:relative}
.imageSlideshowHolder img{position:absolute; left:0px; top:0px}
#btn_lt{position:absolute; top:300px; left:0}
#btn_rt{position:absolute; top:300px; right:0}