[Zope] Returning an image and text from python script

[Sven Hohage]

I'd like to return from python script an image object to a dtml method 
which renders the image.
If the state is edit - set by a cookie- the image should have a link for 
updating the image.
I tried to add the text with the object which obviously failed.
I also tried to return a string like "<dtml-var '_.getitem(' " + 
pictureName + " ,0'>" + linkText  which only displays the string but 
didn't render the image.

To return multiple values is not what I want because I want to have a 
simple funtion in the dtml-method like <dtml-var "getPicture('pic1')">

Thanks