a ver si me ayudan ... gracias
Código:
ahora si tieben otras sugerencias ,,, = sirven ... gracias <head> <script> function expandir_formulario(){ if (document.busca.opcion.selected==3){ xDisplay('capaexpansion', 'block') }else{ xDisplay('capaexpansion', 'none') } } </script> </head> <body> elseif($op==2){ ?> <h2>Consultas</h2> <br/> <br/> <form name="busca" method="post" action="formulario.php?op=2"> <table width="80%" height="30" border="0" cellspacing="1"> <tr valign="top"> <td width="8%">Buscar</td> <td width="25%"><input type="text" name="buscar" size="30" /></td> <td width="5%"></td> <td width="62%" > <select name="opcion"> <option value="0"> </option> <option value="1" >Nro. Contenedor</option> <option value="2" >Nro. Documento</option> <option value="3" onclick="expandir_formulario()">Fecha</option> </select> <input type="submit" name="Button1" value="Ir" /> </td> </tr> </table> <br/> <div id=capaexpansion> <table id="fecha" width="66%" border="0" cellspacing="0"> <tr> <td width="9%"> Inicio </td> <td width="36%"><input type="text" id="inicio" name="inicio"/> <button id="buttoninicio" >...</button></td> <td width="6%">Fin </td> <td width="39%"><input type="text" id="fin" name="fin"/> <button id="buttonfin" >...</button></td> </tr> </table> <body>