.table_back{background:url(/Images/rounded_back_c.gif);}
.floor{background:url(/Images/rounded_d.gif);cursor:pointer;width:32px;height:32px;}
.closed{background-position:-96px 0;cursor:default;}
.edge{background-position:-64px 0;}

.rook{background-position:0 -32px;cursor:default;}
.bishop{background-position:-32px -32px;cursor:default;}
.knight{background-position:-64px -32px;cursor:default;}
.queen{background-position:-96px -32px;cursor:default;}