title: checked = "checked" vs checked = true
body: <p>What is the difference between the below two usages?</p>
  
  <pre><code>document.getElementById('myRadio').checked = "checked";
  </code></pre>
  
  <p>and </p>
  
  <pre><code>document.getElementById('myRadio').checked = true;
  </code></pre>
  
  <p>For me, both are behaving the same way. But, I am just curious to know why there exist two methods to do the same.</p>
  
  <p>Which one will be the ideal usage? I need to support IE7 and higher versions.</p>