<form class="form-horizontal" action="chk-gerente.php?nro_pergunta=<?php  echo $nro_pergunta; ?>" method="GET">
  <fieldset>
      <legend><b>Pergunta <?php echo"$ordem";?> de <?php echo"$totalpergunta";?></b></legend>
    <div class="form-group">
      <center><h3><label><?php echo"$descpergunta";?></label></h3></center>
      <div class="col-lg-10">
        <div class="radio"><label><input type="radio" name="resp" id="optionsRadios1" value="5">OTIMO        </label></div>
        <div class="radio"><label><input type="radio" name="resp" id="optionsRadios2" value="3">REGULAR      </label></div>
        <div class="radio"><label><input type="radio" name="resp" id="optionsRadios3" value="1">RUIM         </label></div>
        <div class="radio"><label><input type="radio" name="resp" id="optionsRadios4" value="0">NAO APLICADO </label></div>
        </div>
      </div>
    <?php
     $timestamp            = @mktime(date("H")-4, date("i"),date("s"),date("m"),date("d"),date("Y"),0);
     $DataCad              = gmdate("Y-m-d", $timestamp); // Gravar $DataCad no BD
     echo"<input type='hidden' name='loja'         id='loja'         value='$loja'>";
     echo"<input type='hidden' name='id_usuario'   id='id_usuario'   value='$id_usuario'>";
     echo"<input type='hidden' name='questionario' id='questionario' value='$questionario'>";
     echo"<input type='hidden' name='area'         id='area'         value='$area'>";
     echo"<input type='hidden' name='nro_pergunta' id='nro_pergunta' value='$nro_pergunta'>";
     echo"<input type='hidden' name='DataCad'      id='DataCad'      value='$DataCad'>";
     echo"<input type='hidden' name='pergunta'     id='pergunta'     value='$idpergunta'>";
    ?>
    <div class="form-group">
      <div class="col-lg-10 col-lg-offset-2">
        <button id='button' type="submit" class="btn btn-primary">Responder</button>
       </div>
    </div>
  </fieldset>
 </form>

require("conexao.php");

if(isset($_GET['submit'])){
    $loja         = $_GET ["loja"];
    $id_ususario  = $_GET ["id_usuario"];
    $questionario = $_GET ["questionario"];
    $area         = $_GET ["area"];
    $idpergunta   = $_GET ["pergunta"];
    $resp         = $_GET ["resp"];
    $datacad      = $_GET ["DataCad"];

    $sql_insert = mysql_query("INSERT INTO respostas
  (resp_id,resp_loja,resp_usuario,resp_questionario,resp_area,resp_subgrupo,resp_pergunta_id,resp_resposta,resp_data,resp_status)
  VALUES
  ('','$loja','$id_usuario','$questionario','$area','1','$idpergunta','$resp','$DataCad','1')")
   or die (mysql_error());
   @mysql_query($sql_insert,$conexao);
   } else {


   }