TinyMCE Paths, How to specify where to load things like editor_plugin.js

I had the same issue, and it could have been solved easily if we were able to specify the base url using the document_base_url.

Alternatively, I was able to specify the base url before initializing tinymce.

tinyMCE.baseURL = "URL_TO/tinymce/jscripts/tiny_mce/";// trailing slash important

tinyMCE.init({
        mode : "textareas",
        theme : "simple"
});

TinyMCE is working fine now.