post - I can not return a BOOLEAN value using $. Pos jQuery -

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i have js function following code:

$('#pedesenha').click(function () {     $("#respostaquery").html('');     var vpos = math.floor((math.random() * 20) + 1);     var vsenha = prompt("digite sua senha de posição [" + vpos + "]");     var vcdmil = $("#cdmil").val();     var vcdreq = $("#cdreq").val();     if (vsenha != '') {          $.post('paginas/testasenha.php', {             pos: vpos,             senha: vsenha,             cdmil: vcdmil         }, function (resp2) {             if (resp2) {                 alert('acertou');             } else {                 alert('errou');             }              $('html').removeclass('wait');         })      } });

the function follows. clicking button asks password card password, random number 1 20 generated , user asked enter relevant password.

these data sent page .. follows:

    **<?php include_once '../inc/connection.php'; $senhapassada = $_post['senha']; $posicao = $_post['pos']; $cdmil = base64_decode($_post['cdmil']);   $querycartao = "select * cartao cd_mil = $cdmil"; $row = mysql_fetch_array(mysql_query($querycartao)); $cdcartao = $row['cdcartao'];  $querysenha = "select posicao senha posicao = $posicao , codigosenha = $senhapassada , cd_cartao = '$cdcartao'"; $certo  = mysql_num_rows(mysql_query($querysenha)); if($certo == 1){     return true; }else{     return false; }

it's not returning anything, though.


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