TinyMCE sometimes uses textarea insert method in TinyMCE block.

Because of various browser issues, I consider it a good thing to allow users to toggle the use of TinyMCE when entering data.

In order to use TinyMCE with plain textareas, I've enabled the 'add image or link' bit under 'edit-body' on story nodes. This is present whether or not TinyMCE is active. (and I'd prefer that it remain so, as it's less clumsy than the two dialog approach normally used by TinyMCE).

This works well with textarea entry when IMCE is turned off, but when it's turned on, IMCE tries to insert code with the wrong calls, failing to insert the image. There is an error in the javascript console identifying that field.selectionStart() has failed.