title: tinyMce bind focusin/focusout events?
body: <p>i am trying like this:</p>
  
  <pre><code>setup : function(ed, evt) {
              ed.onInit.add(function(ed, evt) {
                  tinymce.dom.Event.add(ed.getDoc(), 'focus', function(e) {
                      // Do something when the editor window is blured.
                      alert('focus!!!');
                  });
              });
              ed.onInit.add(function(ed, evt) {
                  tinymce.dom.Event.add(ed.getDoc(), 'blur', function(e) {
                      // Do something when the editor window is blured.
                      alert('blur!!!');
                  });
              });
          }
  </code></pre>
  
  <p>but when i focus the textarea i get many alerts saing focus, next blur, next focus,  ... in a loop</p>
  
  <p>what's the right way to do it?</p>