Get input values

<table class="conf-parameters">
    <tr>
        <td></td>
        <td><input name="param-key" type="text" class="param-key" /></td>
        <td><input name="param-val" type="text" class="param-val" /></td>
    </tr>
    <tr>
        <td></td>
        <td><input name="param-key" type="text" class="param-key" /></td>
        <td><input name="param-val" type="text" class="param-val" /></td>
    </tr>
    <!-- etc -->
</table>