hola ... no se q es el problema ... aparte me funciona a media (ya q funciona en firefox mas o menos pero no IE 7)
Código:
<html>
<head>
<script LANGUAGE="javascript">
var capa
function cambio(idCapa){
if (document.layers) capa = eval("document." + idCapa);
if (document.all) capa = eval(idCapa + ".style");
if (document.getElementById) capa = eval('document.getElementById("' + idCapa + '").style');
if ((capa.visibility == "hidden") || (capa.visibility == "hide")){
capa.visibility = (document.layers) ? "show" : "visible" ;
}else{
capa.visibility = (document.layers) ? "hide" : "hidden" ;
}
}
//-->
</script>
</head>
<body>
<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" onchange="if(this.value ==3) cambio(3);">
<option value="0"> </option>
<option value="1" >Nro. Contenedor</option>
<option value="2" >Nro. Documento</option>
<option value="3" >Fecha</option>
</select>
</td>
</tr>
</table>
<br/>
<div id="3">
<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>
</div>
<input type="submit" name="Button1" value="Ir" />
</body>