Como mostrar/ocultar campos de una consulta con php

[marcemad]

Si añado checksbox no me elima la columna corrspondiente pq??

EJ :

<table width="100%" border="0" align="center">
<tr>
<td><table width="50%" border="0">
<tr>
<td>Zona
<input type="checkbox" name="checkbox" value="checkbox" onClick="document.getElementById('col1').style.dis play=this.checked?'':'none'" checked></td>
<td>C&oacute;digo
<input type="checkbox" name="checkbox" value="checkbox" onClick="document.getElementById('col2').style.dis play=this.checked?'':'none'" checked></td>
<td>Nombre
<input type="checkbox" name="checkbox" value="checkbox" onClick="document.getElementById('col3').style.dis play=this.checked?'':'none'" checked></td>
</tr>
</table>