.mmlevel-all{width:160px;height:20px;overflow:hidden;display:-moz-inline-box;display:inline-block;background:url('/images/nskin/mmlevel.png') no-repeat;cursor:pointer;} 
.mmlevel-0{background-position:0 0;} 
.mmlevel-1{background-position:0 -20;} 
.mmlevel-2{background-position:0 -40;} 
.mmlevel-3{background-position:0 -60;}