.sliderbutton {position:absolute; width:106px;z-index:9999;height:207px;}
.sliderbutton img {cursor:pointer; }
#slider {position:relative;overflow:auto; width:1100px; height:687px;z-index:9;}
#slider ul {position:relative; list-style:none; top:0; left:0}
#slider li {float:left; width:1100px; height:687px; padding-right:10px}