.cssnav {
position: relative;
font-family: arial, helvetica, sans-serif;
background-image: url(img/bt-click2.gif);
background-repeat: no-repeat;
white-space: nowrap;
display: block;
width: 65px;
height: 17px;
margin: 0;
padding: 0;
}

.cssnav a {
display: block;
color: #000000;
font-size: 11px;
width: 65px;
height: 17px;
display: block;
float: left;
color: black;
text-decoration: none;
}

.cssnav img {width: 65px; height: 17px; border: 0; }
* html a:hover {visibility:visible}
.cssnav a:hover img{visibility:hidden}