This option enables you to execute custom setup content logic when the editor initializes. The format of this callback is: setupContent(editor_id, body, doc). Where editor_id is the TinyMCE editor instance id the editor instance object reference can be retrived by using tinyMCE.getInstanceById(editor_id). The body parameter is a reference to the iframes body element and doc is the iframes document element. This option is not used if it's not specified.
Example of usage of the setupcontent_callback option:
function myCustomSetupContent(editor_id, body, doc) { body.innerHTML = "my new content" + body.innerHTML; } tinyMCE.init({ ... setupcontent_callback : "myCustomSetupContent" });