.a1 {
	background-image: url(../images/a1.gif);
}
.a2 {
	background-image: url(../images/a2.gif);
}
.a3 {
	background-image: url(../images/a3.gif);
}
.a4 {
	background-image: url(../images/a4.gif);
}
.a6 {
	background-image: url(../images/a6.gif);
}
.a7 {
	background-image: url(../images/a7.gif);
}
.a8 {
	background-image: url(../images/a8.gif);
}
.a9 {
	background-image: url(../images/a9.gif);
}