title: TinyMCE.init not working on second click
body: <p>In my page there is a list of buttons. Depending on the clicked button the same <code>.php</code> file is loaded with a different content for the <code>&lt;textarea&gt;</code>. Then TinyMCE is initialised and after that the content of TinyMCE is set.</p>
  
  <p>However, this only works on the first click. When a user clicks a different button, the <code>&lt;textarea&gt;</code> is loaded, but TinyMCE is not initialised. I don't know why it's doing that, because it's the same script that is executed.</p>
  
  <pre><code>$("ul").on("click", "a.click-menu", function() {
      var id = $(this).attr("id");
      $(".inject").load("Including/modules/Pages/index.php?page="+id, function () {
          tinymce.init({selector:"textarea"});
      });
  });
  </code></pre>
  
  <p>And this is <code>index.php</code> in a nutshell:</p>
  
  <pre><code>&lt;?php
  
      echo '&lt;textarea&gt;'.$_GET['page'].'&lt;/textarea&gt;';
  
  ?&gt;
  </code></pre>