td.left {width:10px; background-image:url(../img/shdw_lft.png);}
td.right {width:10px; background-image:url(../img/shdw_rght.png);}
td.up {height:10px; background-image:url(../img/shdw_up.png);}
td.down {height:10px; background-image:url(../img/shdw_down.png);}