#fullsize {position:relative; width:500px; height:300px; padding:2px; border:1px solid #ccc}
.imgnav {position:absolute; width:5%; height:306px; cursor:pointer; z-index:150}
#imgprev {left:0; background:url(images/scroll-left.gif) left center no-repeat}
#imgnext {right:0; background:url(images/scroll-right.gif) right center no-repeat}