.nav1 {
display: block;
width: 144px;
height: 40px;
background-image: url(../images/13.gif);
background-repeat: no-repeat;
	
}
a.nav1:hover {
display: block;
width: 144px;
height: 40px;
background-repeat: no-repeat;
	background-image: url(../images/13a.gif);
}
.nav2 {
display: block;
width: 144px;
height: 41px;
background-image: url(../images/14.gif);
background-repeat: no-repeat;
	}
a.nav2:hover {
display: block;
width: 144px;
height: 41px;
background-repeat: no-repeat;
	background-image: url(../images/14a.gif);
}
.nav3 {
display: block;
background-image: url(../images/15.gif);
background-repeat: no-repeat;
width: 144px;
height: 49px;
}
a.nav3:hover {
display: block;
width: 144px;
height: 49px;
background-repeat: no-repeat;
	background-image: url(../images/15a.gif);
}
.nav4 {
display: block;
width: 144px;
height: 45px;
background-repeat: no-repeat;
background-image: url(../images/16.gif);

}
a.nav4:hover {
display: block;
width: 144px;
height: 45px;
background-repeat: no-repeat;
	background-image: url(../images/16a.gif);
}
.nav5 {
display: block;
width: 144px;
height: 40px;
background-repeat: no-repeat;
background-image: url(../images/17.gif);
}
a.nav5:hover {
display: block;
width: 144px;
height: 40px;
background-repeat: no-repeat;
	background-image: url(../images/17a.gif);
}