I am using the jQuery plugin from the jQuery build of TinyMCE. This simplified code initializes the editor: $('textarea.tinymce').tinymce({ script_url : '../js/libraries/tiny_mce/tiny_mce.js' }); This loads tiny_mce.js via AJAX. I have code that I want to run once this file is loaded. I essentially want to specify a callback function, but there is no mention of this in the documentation for the plugin. Any ideas? I would be up for adding the functionality if it is not there but I cannot find an uncompressed version of the plugin.