++ $col[$arr['class']];
   if ($col[$arr['class']]<=2)
     $staff_table[$arr['class']]=$staff_table[$arr['class']]."<td class=embedded>&nbsp;</td>";
   else
   {
     $staff_table[$arr['class']]=$staff_table[$arr['class']]."</tr><tr height=15>";
     $col[$arr['class']]=0;
   }