	<tr>
		<td>cell3</td>
		<td>&amp;nbsp;</td>
	</tr>
	</tbody>
</table>
</textarea>
<textarea id='add-col-after-3'>
<table>
	<tbody>
	<tr>
		<td rowspan="2">
			cell1^
		</td>
		<td>
			cell2
		</td>
	</tr>
	<tr>
		<td>cell3</td>
	</tr>
	</tbody>
</table>
=>
<table>
	<tbody>
	<tr>
		<td rowspan="2">cell1</td>
		<td rowspan="2">&amp;nbsp;</td>
		<td>cell2</td>
	</tr>
	<tr>
		<td>cell3</td>
	</tr>
	</tbody>
</table>
</textarea>
<textarea id='add-col-after-4'>
<table>
	<tbody>
	<tr>
		<td>cell1</td>
		<td>cell2