title: Bootstrap radio button: Get selected value on submit form
body: <p>I have the next boostrap radio-button:</p>
  
  <pre><code>&lt;div class="btn-group" id="filterDay" data-toggle="buttons"&gt;
         &lt;label class="btn btn-default blue"&gt;
           &lt;input type="radio" class="toggle" value="1"&gt;Monday
         &lt;/label&gt;
         &lt;label class="btn btn-default blue"&gt;
           &lt;input type="radio" class="toggle" value="2"&gt; Tuesday
         &lt;/label&gt;
         &lt;label class="btn btn-default blue"&gt;
           &lt;input type="radio" class="toggle" value="3"&gt; Wednesday
         &lt;/label&gt;
         &lt;label class="btn btn-default blue"&gt;
           &lt;input type="radio" class="toggle" value="4"&gt; Thursday
         &lt;/label&gt;
         &lt;label class="btn btn-default blue"&gt;
            &lt;input type="radio" class="toggle" value="5"&gt; Friday
         &lt;/label&gt;
         &lt;label class="btn btn-default blue"&gt;
             &lt;input type="radio" class="toggle" value="6"&gt; Saturday
          &lt;/label&gt;
         &lt;label class="btn btn-default blue active"&gt;
             &lt;input type="radio" class="toggle" value="0"&gt; Sunday
         &lt;/label&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>I'm trying to get value of the active button when I submit the form, without creating an "onclick" event, simply getting the active button from the $('#filterDay') button group. Should be easy but I'm not finding a way to get the value. I tried several examples but any worked.</p>
  
  <p>Could someone help?</p>
  
  <p>Thank you!</p>
  
  <p><strong>Update:</strong></p>
  
  <p>This is the html "printed" code:</p>
  
  <pre><code>&lt;label class="btn btn-default blue"&gt;
     &lt;input type="radio" class="toggle" value="6"&gt; Saturday
  &lt;/label&gt;    
  &lt;label class="btn btn-default blue active"&gt;
          &lt;input type="radio" class="toggle" value="0"&gt; Sunday
  &lt;/label&gt;
  </code></pre>
  
  <p>The "active" in the class is what is changing when I click the button.</p>