title: Check if all radio buttons checked having particular value
body: <pre><code>&lt;input type="radio" checked="checked" value="true" name="child"&gt;
  &lt;span class="label"&gt;Show&lt;/span&gt;
  &lt;input type="radio" class="hide" value="false" name="child"&gt;
  &lt;span class="label"&gt;Hide&lt;/span&gt;
  </code></pre>
  
  <p>and another radio button on the same page</p>
  
  <pre><code>&lt;input type="radio" checked="checked" value="true" name="baby"&gt;
  &lt;span class="label"&gt;Show&lt;/span&gt;
  &lt;input type="radio" class="hide" value="false" name="baby"&gt;
  &lt;span class="label"&gt;Hide&lt;/span&gt;
  </code></pre>
  
  <p>I need to know if all the radio buttons having <code>value="false"</code> are checked using javascript.</p>
  
  <p><strong>Note:</strong> The radio button names are different</p>