title: TinyMCE insert content
body: <p>I have 2 textarea in a webpage which use tinyMCE.</p>
  
  <pre><code>&lt;textarea id="id1" rows="10" cols="50" name="name1"&gt;&lt;/textarea&gt;
  &lt;textarea id="id2" rows="10" cols="50" name="name2"&gt;&lt;/textarea&gt;
  </code></pre>
  
  <p>On version 3 of TinyMCE, I was able to do this</p>
  
  <pre><code>$('#id1').tinymce().execCommand('mceInsertContent', false, "content");
  </code></pre>
  
  <p>Now on version 4, I try to use the same code, but it didn't work. So, how can I insert content into the specific targeted textarea?</p>