Utilizo la funcion on Submit a continuacion la pongo:
Código HTML:
<form action="<?php echo $editFormAction; ?>" method="post" name="form1" id="form1" onsubmit="MM_validateForm('rif2','','RisNum','rif3','','RisNum','nombre','','R','direccion','','R','contacto','','R','telefono','','RisNum','fax','','RisNum','celular','','RisNum','correo','','RisEmail');return document.MM_returnValue">