problemas con un formulario, no envia todas las variables $_REQUEST

[pollo_c2]

hola amigos saludos a todos!!!!!!
mi problema esta a la hora de enviar un formulario, el formulario solo envia al servidor algunas variables $_REQUEST. les pondre el codigo del formulario

<form method="post" name="form1" action="prueba.php" id="form1">
<table width="100%" border="0" bordercolor="#FF9900" class="demoTable"summary="Ejemplo de tabla">
<caption>
USUARIO:
</caption>
<tfoot>
<tr>
<td colspan="5">INIFAP</td>
</tr>
</tfoot>
<tbody>
<tr>
<td width="15%">Numero PRECI </td>
<td width="29%">A&ntilde;o de Produccion </td>
<td width="33%">Tipo de Tecnologia </td>
<td width="5%">&nbsp;</td>
<td width="18%">Sub Sector </td>
</tr>
<tr>
<td><input name="intpreci" type="text" maxlength="15" onBlur="this.value=this.value.toUpperCase()"> </td>
<td><input name="intanio" type="text" onkeyPress="return fechas22(this.value,event)" maxlength="10" onBlur="return Validar(this,event)"></td>
<? $registros=mysql_query('select id_tecnologia, des_tec from tipos_tecnologias',$conexion) or
die('Problemas en el select:'.mysql_error());
?>
<td><select name="seltecnologia" size="1" >
<? while ($reg=mysql_fetch_array($registros))
{?>
<option value=" <? echo($reg["id_tecnologia"]) ?> "> <? echo($reg["des_tec"]) ?> </option>
<? }
$registros=mysql_query('select id_sub, des_sub from subsectores_beneficios',$conexion) or
die('Problemas en el select:'.mysql_error());
?>
</select> </td>
<td>&nbsp;</td>
<td><select name="selsubsec" size="1" id="selajax" onChange="mostrarMaterias(this)">
<option value="0">SELECCIONAR....</option>
<? while ($reg=mysql_fetch_array($registros))
{?>
<option value=" <? echo($reg["id_sub"]) ?> "> <? echo($reg["des_sub"]) ?> </option>
<? } ?>
</select> </td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td><select name="selsispro" id="auxsubsector">
</select> </td>
</tr>
<tr>
<td>Sistema Productos </td>
<td>Condicion de humedad </td>
<td>Componente Tecnologico </td>
<td>&nbsp;</td>
<td>Ciclo de Produccion </td>
</tr>
<tr>
<td><select name="select3" id="sispro" onChange="controlaux(this)" >
</select> </td>
<? $registros=mysql_query('select id_hum, des_hum from chumedad',$conexion) or
die('Problemas en el select:'.mysql_error());?>
<td><select name="chumedad">
<? while ($reg=mysql_fetch_array($registros))
{?>
<option value=" <? echo($reg["id_hum"]) ?> "> <? echo($reg["des_hum"]) ?> </option>
<? } ?>

</select>
</td>
<? $registros=mysql_query('select id_comtec, des_comtec from componentes_tec',$conexion) or
die('Problemas en el select:'.mysql_error());
?>
<td><select name="selcomtec">
<? while ($reg=mysql_fetch_array($registros))
{?>
<option value=" <? echo($reg["id_comtec"]) ?> "> <? echo($reg["des_comtec"]) ?> </option>
<? }
$registros=mysql_query('select id_siclo, des_siclo from ciclo_productivo',$conexion) or
die('Problemas en el select:'.mysql_error());
?>
</select> </td>
<td>&nbsp;</td>
<td><select name="selcicpro">
<? while ($reg=mysql_fetch_array($registros))
{?>
<option value=" <? echo($reg["id_siclo"]) ?> "> <? echo($reg["des_siclo"]) ?> </option>
<? }?>
</select> </td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
<tr>
<td>Titulo de la Tecnologia </td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
<tr>
<td colspan="5"><input name="inttittec" type="text" size="150" maxlength="250" onBlur="this.value=this.value.toUpperCase()">
<label></label></td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
<tr>
<td>Descripcion Inovacion </td>
<td>&nbsp;</td>
<td>Problema</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
<tr>
<td colspan="2"><label>
<textarea name="aredesino" cols="55" rows="6" onkeyPress="return contar(this.value,event)" onBlur="this.value=this.value.toUpperCase()"></textarea>
</label></td>
<td colspan="3"><textarea name="aredespro" cols="55" rows="6" onkeyPress="return contar(this.value,event)" onBlur="this.value=this.value.toUpperCase()"></textarea></td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
<tr>
<td>Resultados</td>
<td>&nbsp;</td>
<td>Recomendaciones</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
<tr>
<td colspan="2"><textarea name="areres" cols="55" rows="6" onkeyPress="return contar(this.value,event)" onBlur="this.value=this.value.toUpperCase()"></textarea></td>
<td colspan="3"><textarea name="arerec" cols="55" rows="6" onkeyPress="return contar(this.value,event)" onBlur="this.value=this.value.toUpperCase()"></textarea></td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
<tr>
<td>Costo por A&ntilde;o </td>
<td>&nbsp;</td>
<td>Disponibilidad</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
<tr>
<td colspan="2"><textarea name="arecosanio" cols="55" rows="6" onkeyPress="return contar(this.value,event)" onBlur="this.value=this.value.toUpperCase()"></textarea></td>
<td colspan="3"><textarea name="aredispon" cols="55" rows="6" onkeyPress="return contar(this.value,event)" onBlur="this.value=this.value.toUpperCase()"></textarea></td>
</tr>


<tr>
<td colspan="5">BENEFICIOS POTENCIALES </td>
</tr>

<tr>
<td colspan="5">Economico <input name="cajaeconomico" type="text" size= "150" maxlength="250" onBlur="this.value=this.value.toUpperCase()"> &nbsp;</td>
</tr>
<tr>
<td colspan="5">Ambiental <input name="cajaambiental" type="text" size= "150" maxlength="250" onBlur="this.value=this.value.toUpperCase()"> &nbsp;</td>
</tr>
<tr>
<td colspan="5">Social <input name="cajasocial" type="text" size= "150" maxlength="250" onBlur="this.value=this.value.toUpperCase()"> &nbsp;</td>
</tr>


<tr>
<td colspan="5">
<div id="propiedadi">




<li>
<ul>
<? $registros=mysql_query('select id_intelectual,des_intelectual from propiedad_intelectual',$conexion) or die('Problemas en el select:'.mysql_error());
$contador=0;
while ($reg=mysql_fetch_array($registros))
{

?>

<li><input type="checkbox" name= "<? echo($reg["id_intelectual"]); ?>check"> <? echo($reg["des_intelectual"]); ?> </li>
<?
}
?>
</ul>
</li>
</div> <!-- div propiedad intelectual -->


</td>
</tr>

<tr>
<td>Centros</td>
<td> </td>
<td>Campos Experimentales</td>
<td> </td>
<td>Investigadores</td>
</tr>
<tr>
<td><select name="select6" id="combocen" onChange="mostrarCampos(this)">
<option value="0">SELECCIONAR....</option>
<?
$registros=mysql_query('select id_region, des_region,region from regiones',$conexion) or
die('Problemas en el select:'.mysql_error());
while ($reg=mysql_fetch_array($registros))
{
?>
<option value=" <? echo($reg["id_region"]) ?> "> <? echo($reg["region"]) ?> </option>
<?
}
?>
</select>
</td>
<td> </td>
<td><select name="select7" id="comboexp" onChange="mostrarInv(this)" >
</select>
</td>
<td> </td>
<td><select name="select8" id="comboinv" onChange="controlaux(this)" >
</select> </td>
</td>
</tr>
<tr>
<td></td>
<td> </td>
<td><select name="select9" id="auxcampos">
</select></td>
<td> </td>
<td><select name="id_inv" id="auxinves">
</select> </td>
</tr>

<tr>
<td colspan="5">
<ul>
<li>RED DE INVESTIGACION
<ul>
<? $registros2=mysql_query('select id_red, des_red from red_inv',$conexion) or die('Problemas en el select:'.mysql_error());
while ($reg2=mysql_fetch_array($registros2))
{
?>
<li><input type="checkbox" name="<? echo($reg2["id_red"]);?>red"> <? echo($reg2["des_red"]) ; ?></li>
<? } ?>
</ul>
</li>
</ul>
</td>
</tr>
<tr>
<td><label>
<input type="button" name="Submit" value="Enviar" onClick="validar(this.form)" >
</label></td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
</tbody>
</table>
</form>