Me parece que la solución que necesitas es el uso del atributo
colspan
Código:
<html>
<body>
<table cellspacing="0" cellpadding="0">
<tr class="arial12">
<td class="arial14"><fieldset class="fondoazul" >
<legend class="arialblack14">
fieldset2</legend>
<table width="457" align="center">
<!--DWLayoutTable-->
<tr>
<td width="95" height="24" valign="middle" class="arial14">Campo1</td>
<td width="350" colspan="3" valign="top"><input name="Campo1" type="text" readonly="true" value="Valor Campo1" class="textfield" id="Campo1" size="58" maxlength="50" /></td>
</tr>
<tr>
<td width="95" height="24" valign="middle" class="arial14">campo2</td>
<td colspan="3" valign="top"><input readonly="true" name="Campo2" value="Valor Campo2" type="text" class="textfield" id="Campo2" size="58" maxlength="50" /></td>
</tr>
<tr>
<td width="95" height="24" valign="middle" class="arial14">campo3</td>
<td colspan="3" valign="top"><input readonly="true" name="Campo3" value="Valor Campo3" type="text" class="textfield" id="Campo3" size="58" maxlength="50" /></td>
</tr>
<tr>
<td width="95" height="24" valign="middle" class="arial14">campo4</td>
<td width="150" valign="top" class="arial14"><input readonly="true" name="Campo4" value="C4" type="text" class="textfield" id="SuministroNumero2" size="5" maxlength="4" /></td>
<td width="95" height="24" valign="middle" class="arial14">campo4.1</td>
<td valign="top" class="arial14"><input readonly="true" name="Campo4.1" value="Campo 4.1" type="text" class="textfield" id="Campo4.1" size="15" maxlength="15" /></td>
</tr>
<tr>
<td width="95" height="26" valign="middle" class="arial14">campo5</td>
<td colspan="3" valign="top"><input name="Campo5" type="text" readonly="true" class="textfield" id="Campo5" value="Campo5" size="58" maxlength="50" /></td>
</tr>
<tr>
<td width="95" height="24" valign="middle" class="arial14">campo6</td>
<td valign="top" class="arial14"><input name="C6" readonly="true" type="text" class="textfield" value="C6" id="C6" size="6" maxlength="10" /></td>
<td width="95" height="24" valign="middle" class="arial14">campo6.1</td>
<td valign="top" class="arial14"><input readonly="true" name="Campo 6.1" type="text" value="Campo 6.1" class="textfield" id="Campo 6.1" size="15" maxlength="15" /></td>
</tr>
<tr>
<td width="95" height="24" valign="middle" class="arial14">campo7</td>
<td valign="top" class="arial14"><input readonly="true" name="SuministroTelefono1" type="text" class="textfieldCentrado" value="Campo7" id="SuministroTelefono12" size="15" maxlength="15" /></td>
<td width="95" height="24" valign="middle" class="arial14">campo7.1</td>
<td valign="top" class="arial14"><input readonly="true" name="Campo7.1" value="Campo7.1" type="text" class="textfieldCentrado" id="Campo7.1" size="15" maxlength="15" /></td>
</tr>
<tr>
<td height="25" valign="middle" class="arial14">campo8</td>
<td colspan="3" valign="top"><input readonly="true" name="Campo8" value="Campo8" type="text" class="textfieldCentrado" id="Campo8" size="15" maxlength="15" /></td>
</tr>
<tr>
<td width="95" height="24" valign="middle" class="arial14">campo9</td>
<td colspan="3" valign="top"><input readonly="true" name="Campo9" value="Campo9" type="text" class="textfield" id="Campo9" size="58" maxlength="50" /></td>
</tr>
</table>
</fieldset></td>
</tr>
</table>
</body>
</html>
Este atributo funciona como el '
combinar celdas' de
Excel, pero solo para columnas, para filas se debe usar
rowspan. Notarás que las filas (
<tr>) que incluyen un
colspan dentro de una celda (
<td>) tienen dos celdas menos.
Saludos,
HA