title: Why is it selecting both radio buttons?
body: <p>With given HTML, it is selecting both radios despite of having same name that is <strong>mode</strong></p>
  
  <pre><code>&lt;div class="row margin-top"&gt;
      &lt;div class="col-md-3 col-md-offset-1"&gt;
          &lt;form action="" method="post"&gt;
              &lt;div class="form-group"&gt;
                  &lt;label&gt;
                      &lt;input type="radio" value="keyword" name="mode"&gt;
                      Search by Keyword
                  &lt;/label&gt;
              &lt;/div&gt;
          &lt;/form&gt;
      &lt;/div&gt;
      &lt;div class="col-md-5"&gt;
          &lt;form action="" method="post"&gt;
              &lt;div class="form-group"&gt;
                  &lt;input type="text" name="keyword" class="form-control"&gt;
              &lt;/div&gt;
          &lt;/form&gt;
      &lt;/div&gt;
  &lt;/div&gt;
  &lt;div class="row margin-top"&gt;
      &lt;div class="col-md-11 col-md-offset-1"&gt;
          &lt;form action="" method="post"&gt;
              &lt;div class="form-group"&gt;
                  &lt;label&gt;
                      &lt;input type="radio" value="criteria" name="mode"&gt;
                      Search by Criteria
                  &lt;/label&gt;
              &lt;/div&gt;
          &lt;/form&gt;
      &lt;/div&gt;
  &lt;/div&gt;
  </code></pre>