.tab01 a{
	background-image:url(http://www.marumaru.cc/tab/images/standard-grumet.gif);
	background-position: 0px -40px;
}
.tab02 a{
	background-image:url(http://www.marumaru.cc/tab/images/standard-grumet.gif);
	background-position: -155px -0px;
}
.tab03 a{
	background-image:url(http://www.marumaru.cc/tab/images/standard-grumet.gif);
	background-position: -310px -0px;
}
.tab04 a{
	background-image:url(http://www.marumaru.cc/tab/images/standard-grumet.gif);
	background-position: -465px 0px;
}
.tab01 a:hover{
	background-image:url(http://www.marumaru.cc/tab/images/standard-grumet.gif);
	background-position: 0px -40px;
}
.tab02 a:hover{
	background-image:url(http://www.marumaru.cc/tab/images/standard-grumet.gif);
	background-position: -155px -40px;
}
.tab03 a:hover{
	background-image:url(http://www.marumaru.cc/tab/images/standard-grumet.gif);
	background-position: -310px -40px;
}
.tab04 a:hover{
	background-image:url(http://www.marumaru.cc/tab/images/standard-grumet.gif);
	background-position: -465px -40px;
}