i18n and images

Hi,

I've been reading the i18n howto
(http://plone.org/documentation/how-to/i18n-for-developers)
and wonder which would be the best approach for
internationalizing images: we have some images, such
as buttons, that contain text, and will be named
according to the language (for example
"subscribe_en.gif", "subscribe_es.gif").

Related to this, is there an easy way to obtain the
current language as a variable in the ZPT? We're using
Placeless Translation Service, and haven't found any
mentioning of it.

Thanks,

Guillem


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