[Zope] Using images from my_Product

[Luis Martín Argañaraz]

Hi,
I have the next structure in my product My_Product

/My_Product
        /www
                /page.dtml
                ...
        /img
                /my_img.gif
                ...
        /My_Pruduct.py
       ...

I've define in My_Product.py a python class with the same name and
inside this class I define what I show next:

                my_img = ImageFile('img/my_img.gif', globals())

In  page.dtml  I try to insert my_img with this sintax:

                <dtml-var my_img>

This doesn't work. my_img appear as a broken image when I saw page.dtml

This work when I use the same method to insert a piece of code DTML but
doesn't work with an image.
What I am doing wrong?

Thanks in advanced

Martin