I have an user register form alter on my template.php and this is the code:

function mymodule_theme(&$  existing, $  type, $  theme, $  path){    $  hooks = array();   $  hooks['user_register_form'] = array(     'render element'=>'form',     'title' => 'Registro de candidatas',     'template'    =>'templates/user-register',   );   return $  hooks;  }  function mymodule_form_user_register_form_alter(&$  form, &$  form_state, $  form_id) {    $  form['mail'] = array(     '#type' => 'textfield',     '#title_display' => 'invisible',     '#attributes' => array(       'placeholder' => t('Escribe tu correo electrónico'),       'class' => array(         'mymodule-form-email-input'       )     ),     '#required' => true   );   $  form['pass'] = array(     '#type' => 'password',     '#title_display' => 'invisible',     '#attributes' => array(       'placeholder' => t('Escribe tu contraseña'),       'class' => array(         'mymodule-form-email-input'       )     ),     '#required' => true   );   $  form['captcha'] = array(     '#type' => 'captcha',     '#captcha_type' => 'recaptcha/reCAPTCHA',     '#attributes' => array('class' => 'captcha')   );   $  form['submit'] = array(     '#type' => 'submit',     '#value' => t('Regístrate ahora')   );    $  form['#validate'][] = 'mymodule_form_user_register_form_validate';   $  form['#submit'][] = 'mymodule_form_user_register_form_submit';    return $  form;  }  function mymodule_form_user_register_form_validate($  form, &$  form_state) {    var_dump($  form_state);    echo 'This is my function';   drupal_set_message(t('AN ERROR OCURED'));    if (empty($  form_state['values']['mail'])) {     form_set_error('mail', t('Escribe un correo electrónico'));   } else {     if(valid_email_address($  form_state['values']['mail'])) {       form_set_error('mail', t('Email invalido'));      }   }    if (empty($  form_state['values']['pass'])) {     form_set_error('pass', t('Escribe una contraseña'));    }    /*   if (!$  form_state['values']['sendgift']) {     form_set_error(NULL, '', TRUE);     drupal_get_messages();   }   */  }  function mymodule_form_user_register_form_submit($  form, &$  form_state) {    echo ('This is my custom message');   /*   $  newuser = array(     'pass' => $  form_state['values']['pass']['pass2'],     'mail' => $  form_state['values']['mail'],     'init' => $  form_state['values']['mail'],     'status' => 1,   );            $  user = user_save('', $  newuser);   $  user->password = $  pass; // Add plain text password into user account to generate mail tokens.   _user_mail_notify('register_no_approval_required', $  user);    drupal_set_message('Tu registro ha sido procesado, ahora ve a tu email y activalo!');   */  } 

And I have the callbacks mymodule_form_user_register_form_validate and mymodule_form_user_register_form_submit inside mymodule_form_user_register_form_alter but these functions aren’t called when I submit the form. Something wrong here? Please help. Thanks!