tr.past { background-color: rgb(204, 204, 204); 
          vertical-align: top; 
          margin: 0px;
          padding: 2px;
          border: 0px none black ;
      }
tr.future { background-color: transparent ;
            vertical-align: top; 
            margin: 0px;
            padding: 2px;
            border: 0px none black ;
}