.p1 a {
display: block;
width: 150px;
height: 150px;
background: transparent url(photos/thumbs/Photo01t.jpg) no-repeat;
background-position: 0 0;
}
.p1 a:hover {
background-position: -150px 0;
}

.p2 a {
display: block;
width: 150px;
height: 150px;
background: transparent url(photos/thumbs/Photo02t.jpg) no-repeat;
}
.p2 a:hover {
background-position: -150px 0;
}

.p3 a {
display: block;
width: 150px;
height: 150px;
background: transparent url(photos/thumbs/Photo03t.jpg) no-repeat;
}
.p3 a:hover {
background-position: -150px 0;
}

.p4 a {
display: block;
width: 150px;
height: 150px;
background: transparent url(photos/thumbs/Photo04t.jpg) no-repeat;
}
.p4 a:hover {
background-position: -150px 0;
}

.p5 a {
display: block;
width: 150px;
height: 150px;
background: transparent url(photos/thumbs/Photo05t.jpg) no-repeat;
}
.p5 a:hover {
background-position: -150px 0;
}

.p6 a {
display: block;
width: 150px;
height: 150px;
background: transparent url(photos/thumbs/Photo06t.jpg) no-repeat;
}
.p6 a:hover {
background-position: -150px 0;
}

.p7 a {
display: block;
width: 150px;
height: 150px;
background: transparent url(photos/thumbs/Photo07t.jpg) no-repeat;
}
.p7 a:hover {
background-position: -150px 0;
}

.p8 a {
display: block;
width: 150px;
height: 150px;
background: transparent url(photos/thumbs/Photo08t.jpg) no-repeat;
}
.p8 a:hover {
background-position: -150px 0;
}

.p9 a {
display: block;
width: 150px;
height: 150px;
background: transparent url(photos/thumbs/Photo09t.jpg) no-repeat;
}
.p9 a:hover {
background-position: -150px 0;
}