.jssorb21 div, .jssorb21 div:hover, .jssorb21 .av{background: url(../img/b21.png) no-repeat; overflow:hidden; cursor: pointer;}
.jssorb21 div { background-position: -5px -5px; }
.jssorb21 div:hover, .jssorb21 .av:hover { background-position: -35px -5px; }
.jssorb21 .av { background-position: -65px -5px; }
.jssorb21 .dn, .jssorb21 .dn:hover { background-position: -95px -5px; }
.jssora21l, .jssora21r, .jssora21ldn, .jssora21rdn{position: absolute;cursor: pointer;display: block; background: url(../img/a21.png) center center no-repeat; overflow: hidden;}
.jssora21l { background-position: -3px -33px; }
.jssora21r { background-position: -63px -33px; }
.jssora21l:hover { background-position: -123px -33px; }
.jssora21r:hover { background-position: -183px -33px; }
.jssora21ldn { background-position: -243px -33px; }
.jssora21rdn { background-position: -303px -33px; }