* {margin:0; padding:0}
#slideleft:hover {background-position:-0 -265px}
#slideright:hover {background-position:-50px 90px}
#slider {float:left; position:relative; overflow:auto; width:793px; height:193px}
#slider ul {position:absolute; list-style:none; top:0; left:0}
#slider li {float:left; width:793px; height:193px}