[AUCTeX] Change spell dictionary per document

[Axel E. Retif]

Hi,


In .emacs I have Spanish as predefined dictionary for spell checking, 
but for some documents I need English spell checking.

I can change dictionaries when I open a document, but is there a way to 
specify a dictionary *in* the document?

I can't use

    -*- ispell-dictionary: "english" -*-

because when the authors open the documents with their editors, those 
editors for sure will not understand said line.

I tried with

    (add-hook 'TeX-language-en-hook
    (lambda () (ispell-change-dictionary "english")))

in my .emacs, as I have \usepackage[english]{babel} in the preamble, but 
it didn't work.


Best

Axel