Avoid focus on TinyMCE editor

I have the editor linked to a tag <di> with identifier editor .

With a javascript script I call a dialog window of the same tinymce:

tinymce.activeEditor.windowManager.open( ... );

And it's manually closed from code:

tinymce.activeEditor.windowManager.close();

And it automatically sends the focus to the editor. Is there a way to avoid this autofocus ?