Curve image using css (view in Mozilla)

#curve{
background: url(pool.jpg);
width: 250px;
height: 120px;
-webkit-box-shadow: 5px 5px 8px #818181;
-moz-box-shadow: 5px 5px 8px #818181;
-moz-border-radius-topleft: 25px;
-moz-border-radius-bottomright: 25px;
-webkit-border-top-left-radius: 25px;
-webkit-border-bottom-right-radius: 25px;
}