correct work with new tinymce in wordpress 3.9

wstb-dialog.js in wp-content/wp-special-textboxes/js

find:

var contentObj = tinyMCE.getInstanceById('content');
var wstbBody = contentObj.selection.getContent();

replace it with code:

var wstbBody = window.tinyMCE.activeEditor.selection.getContent();

find:

window.tinyMCE.execInstanceCommand('content', 'mceInsertContent', false, wstbCode);

replace it with code:

window.tinymce.activeEditor.execCommand('mceInsertContent', false, wstbCode);

https://ww.wp.xz.cn/plugins/wp-special-textboxes/