Taxonomies image

I’m currently creating a theme and I would like to associate an image to one of my taxonomies.

I’m already able to add some fields and I now want to add a file input which’ll be handle by WordPress upload function.

So, 2 questions :
– Is it possible to add an enctype to the taxonomy form ?
– Is it possible to use the WordPress upload function at this point ?

Thanks for your answers.

Cyril