title: Issue using Jquery Validate + Tooltipster to validate radio buttons
body: <p>I'm using the <a href="http://jqueryvalidation.org/" rel="nofollow noreferrer">Jquery Validation Plugin</a> and <a href="http://iamceege.github.io/tooltipster/" rel="nofollow noreferrer">Tooltipster Plugin</a> based in the example found in this <a href="https://stackoverflow.com/questions/14741688/how-to-display-messages-from-jquery-validate-plugin-inside-of-tooltipster-toolti">post</a>. </p>
  
  <p>Both plugins works fine together validating must the input types, but when i try to validate a pair of radio buttons clicking the submit button, the form is submitted regardless that none radio button is selected, despite that these are explicit required.</p>
  
  <p>This is the form that i'm trying validate</p>
  
  <pre><code>    &lt;form id="form1" method="post" action=""&gt;
  
          &lt;table class="bordered"&gt;
  
              &lt;tbody&gt;
                  &lt;tr&gt;
                        ...
                          &lt;div id="vtelfonos"&gt;
                              &lt;label for="telf_local"&gt;Local&lt;/label&gt;
                              &lt;input type="radio" id="telf_local" name="telf"/&gt;
  
                              &lt;label for="telf_movil"&gt;Movil&lt;/label&gt;
                              &lt;input type="radio" id="telf_movil" name="telf"/&gt;
  
                              &lt;div id="raytel" style="padding-left:100px"&gt;
                                  &lt;span style="float:left"&gt;
                                      &lt;label for="cel1"&gt;&lt;/label&gt;
                                    &lt;select name="cel1" id="cel1" disabled="disabled" style="padding-bottom:1px; margin-right:2px" required&gt;
                                        &lt;option value="0426"&gt;0426&lt;/option&gt;
                                        &lt;option value="0424"&gt;0424&lt;/option&gt;
                                        &lt;option value="0416"&gt;0416&lt;/option&gt;
                                        &lt;option value="0414"&gt;0414&lt;/option&gt;
                                        &lt;option value="0412"&gt;0412&lt;/option&gt;
                                      &lt;/select&gt;
                                  &lt;/span&gt;
                                  &lt;span style="float:left"&gt;
                                      &lt;label for="telefono"&gt;&lt;/label&gt;
                                      &lt;input name="telefono" id="telefono" type="text" disabled="disabled" maxlength="7" style="width:58px"  onkeyUp="return ValNumero(this);" required/&gt;
                                  &lt;/span&gt;
                                  &lt;/div&gt;
  
                              &lt;div id="raytel2" style="display:none; padding-left:100px" &gt;
                                  &lt;p&gt;
                                  &lt;!--&lt;label for="cel11"  &gt;&lt;span style="float:left"&gt;
                                  &lt;input type="text" name="cel11" id="cel11" size="3px" maxlength="4" /&gt;
                                  &lt;/span&gt;&lt;/label&gt;--&gt;
                                  &lt;span style="float:left" id="sprytextfield5"&gt;
                                      &lt;label for="cel11"&gt;&lt;/label&gt;
                                      &lt;input type="text" name="cel11" id="cel11"  maxlength="4" style="margin-right:2px; width:50px" disabled="disabled" onkeyUp="return ValNumero(this);" required/&gt;
                                      &lt;span class="textfieldRequiredMsg"&gt;&lt;/span&gt;
                                  &lt;/span&gt;
  
                                  &lt;label for="cel1"  &gt;
                                      &lt;span style="float:left"&gt;&lt;/span&gt;
                                  &lt;/label&gt;
                                  &lt;span id="sprytextfield44"&gt;
                                      &lt;label for="telefono11"&gt;&lt;/label&gt;
                                      &lt;input id="telefono11" name="telefono11" type="text" disabled="disabled" id="telefono11" onkeyUp="return ValNumero(this);"  maxlength="7" style="width:58px" required /&gt;
                                  &lt;/span&gt;
                                  &lt;/p&gt;
                              &lt;/div&gt;
                          &lt;/div&gt;
                              &lt;div id="telefonoR" style="display:none"&gt;
                               &lt;input size="11" name="Rtelefono" type="text" disabled="disabled" id="Rtelefono"  maxlength="11"  size="10px"/&gt;   
                              &lt;/div&gt;
                              &lt;/td&gt;
                          &lt;/tr&gt;
  
                          &lt;/div&gt;
  
                      &lt;/td&gt;
                  &lt;/tr&gt;
  
  
              &lt;/tbody&gt;
          &lt;/table&gt;
  
      &lt;/form&gt;
  </code></pre>
  
  <p>And this is the script that make the validation</p>
  
  <pre><code>&lt;script&gt;
  $(document).ready(function () {
       // initialize tooltipster on text input elements
      $('#form1 input[type="text"]').tooltipster({
          trigger: 'custom',
          onlyOne: false,
          position: 'right'
      });
  
  
      $("#form1").validate({
          errorPlacement: function (error, element) {
              var lastError = $(element).data('lastError'),
                  newError = $(error).text();
  
              $(element).data('lastError', newError);
  
              if(newError !== '' &amp;&amp; newError !== lastError){
                  $(element).tooltipster('content', newError);
                  $(element).tooltipster('show');
              }
          },
          success: function (label, element) {
              $(element).tooltipster('hide');
          },
          rules: {
              email2: {
                  required: true,
                  email: true
              },
              donante: {
                  required: true,
                  minlength: "2"
              },
              telf: "required",
              cel11: {
                  required: true,
                  minlength: "3"
              },
              telefono11: {
                  required: true,
                  minlength: "7"
              },
              telefono: {
                  required: true,
                  minlength: "7"
              },
              Rtelefono: {
                  required: true,
                  minlength: "11"
              }
  
          },
          messages: {
              email2:{
                  required: "Campo Requerido.",
                  email: "Introduzca un email valido."
              }, 
              donante: {
                  required: "Campo Requerido.",
                  minlength: "Debe tener min. 2 letras."
  
              },
              telf: "Campo Requerido.",
              cel11: {
                  required: "Campo Requerido.",
                  minlength: "Debe tener 3 digitos."
              },
              telefono11:{
                  required: "Campo Requerido.",
                  minlength: "Debe tener 7 digitos."
              },
              telefono: {
                  required: "Campo Requerido.",
                  minlength: "Debe tener 7 digitos."
              },
              Rtelefono: {
                  required: "Campo Requerido.",
                  minlength: "Debe tener 11 digitos."
              }
  
              }
  });
  
  });
  &lt;/script&gt;
  </code></pre>
  
  <p>Is weird because without using the Tooltipster plugin this validation works perfectly.
  I 've read the documentation of both plugins but i can´t find out the reason</p>
  
  <p>Thanks in advance</p>