Javascript-форум - Css календарь

Добрый день всем!
Подскажите пожалуйста как сделать следующее:
есть календарик

<table>
    <thead>
    <tr>
        <th>пн</th>
        <th>вт</th>
        <th>ср</th>
        <th>чт</th>
        <th>пт</th>
        <th>сб</th>
        <th>вс</th>
    </tr>
    </thead>
    <tbody>
    <tr>
        <td><span></span></td>
        <td><span></span></td>
        <td><span>1</span></td>
        <td><span>2</span></td>
        <td class="selected"><span>3</span></td>
        <td><span>4</span></td>
        <td><span>5</span></td>
    </tr>
    <tr>
        <td><span>6</span></td>
        <td><span>7</span></td>
        <td><span>8</span></td>
        <td><span>9</span></td>
        <td><span>10</span></td>
        <td><span>11</span></td>
        <td><span>12</span></td>
    </tr>
    <tr>
        <td><span>13</span></td>
        <td><span>14</span></td>
        <td><span>15</span></td>
        <td><span>16</span></td>
        <td class="selected"><span>17</span></td>
        <td><span>18</span></td>
        <td><span>19</span></td>
    </tr>
    <tr>
        <td><span>20</span></td>
        <td><span>21</span></td>
        <td><span>22</span></td>
        <td><span>23</span></td>
        <td><span>24</span></td>
        <td><span>25</span></td>
        <td><span>26</span></td>
    </tr>
    <tr>
        <td><span>27</span></td>
        <td><span>28</span></td>
        <td><span>29</span></td>
        <td><span>30</span></td>
        <td><span>31</span></td>
        <td><span></span></td>
        <td><span></span></td>
    </tr>
    </tbody>
</table>

как мне взять все td между td.selected ? желательно с помощью css

заранее спасибо!