a.yo1a { 
display: block; width: 140px; height: 25px; background: transparent url(../images/menu/menu1.jpg) no-repeat; 
}

a.yo1 { 
display: block; width: 140px; height: 25px; background: transparent url(../images/menu/m1.jpg) no-repeat; 
} 
a.yo1:hover { background-position: -140px 0; 
} 
a.yo2 { 
display: block; width: 140px; height: 25px; background: transparent url(../images/menu/m2.jpg) no-repeat; 
} 
a.yo2:hover { background-position: -140px 0; 
} 
a.yo3 { 
display: block; width: 140px; height: 25px; background: transparent url(../images/menu/m3.jpg) no-repeat; 
} 
a.yo3:hover { background-position: -140px 0; 
} 
a.yo4 { 
display: block; width: 140px; height: 25px; background: transparent url(../images/menu/m4.jpg) no-repeat; 
} 
a.yo4:hover { background-position: -140px 0; 
} 
a.yo5 { 
display: block; width: 140px; height: 25px; background: transparent url(../images/menu/m5.jpg) no-repeat; 
} 
a.yo5:hover { background-position: -140px 0; 
} 
a.yo6 { 
display: block; width: 140px; height: 25px; background: transparent url(../images/menu/m6.jpg) no-repeat; 
} 
a.yo6:hover { background-position: -140px 0; 
} 
a.yo7 { 
display: block; width: 140px; height: 25px; background: transparent url(../images/menu/m7.jpg) no-repeat; 
} 
a.yo7:hover { background-position: -140px 0; 
} 
a.yo8 { 
display: block; width: 140px; height: 25px; background: transparent url(../images/menu/m8.jpg) no-repeat; 
} 
a.yo8:hover { background-position: -140px 0; 
} 
a.yo9 { 
display: block; width: 140px; height: 25px; background: transparent url(../images/menu/m9.jpg) no-repeat; 
} 
a.yo9:hover { background-position: -140px 0; 
} 
a.yo10 { 
display: block; width: 140px; height: 25px; background: transparent url(../images/menu/m10.jpg) no-repeat; 
} 
a.yo10:hover { background-position: -140px 0; 
} 
a.yo11 { 
display: block; width: 140px; height: 25px; background: transparent url(../images/menu/m11.jpg) no-repeat; 
} 
a.yo11:hover { background-position: -140px 0; 
} 
a.yo12 { 
display: block; width: 140px; height: 25px; background: transparent url(../images/menu/m12.jpg) no-repeat; 
} 
a.yo12:hover { background-position: -140px 0; 
}