#thumb1 {
background: url(pics/thumb001.png);
}

a#thumb1:hover {
background: url(pics/thumb001h.png);
}

#thumb2 {
background: url(pics/thumb002.png);
}

a#thumb2:hover {
background: url(pics/thumb002h.png);
}

#thumb3 {
background: url(pics/thumb003.png);
}

a#thumb3:hover {
background: url(pics/thumb003h.png);
}

#thumb4 {
background: url(pics/thumb004.png);
}

a#thumb4:hover {
background: url(pics/thumb004h.png);
}

#linkbox {
list-style: none;
margin: 19px 0 0 0;
padding: 0;
line-height: 0;
}

#linkbox a {
display:block;
margin: 0;
float: left;
padding: 0;
height: 180px;
width: 62px;
text-indent: -9999px;
}