="header">
<th>Parameter</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr class="odd">
<td><em>nYear1</em></td>
<td>A four digit year.</td>
</tr>
<tr class="even">
<td><em>nMonth1</em></td>
<td>A month number (1-12).</td>
</tr>
<tr class="odd">
<td><em>nDay1</em></td>
<td>A day number (1-31).</td>
</tr>
<tr class="even">
<td><em>nYear2</em></td>
<td>A four digit year.</td>
</tr>
<tr class="odd">
<td><em>nMonth2</em></td>
<td>A month number (1-12).</td>
</tr>
<tr class="even">
<td><em>nDay2</em></td>
<td