a.tablink
{
    FONT-SIZE: 10px;
    COLOR: white;
    FONT-FAMILY: arial,helvetica,swiss,sans-serif;
    BACKGROUND-COLOR: transparent;
    TEXT-DECORATION: none;
}

td.inactivetab
{
    FONT-SIZE: 10px;
    BACKGROUND-IMAGE: url(off.gif);
    COLOR: white;
    BACKGROUND-REPEAT: no-repeat;
    FONT-FAMILY: arial,helvetica,swiss,sans-serif;
    BACKGROUND-COLOR: transparent;
    <!-- Abracadabra! -->
}

td.activetab
{
    FONT-SIZE: 10px;
    BACKGROUND-IMAGE: url(on.gif);
    COLOR: black;
    BACKGROUND-REPEAT: no-repeat;
    FONT-FAMILY: arial,helvetica,swiss,sans-serif;
    BACKGROUND-COLOR: transparent;
}