I don't know if this helps, but if your wiki allows embedding of 'external' images you could make a file icon clickable by using the method described in the bottom of the table at http://meta.wikimedia.org/wiki/Help:Navigational_image#Projects_that_allow_e mbedding_images_in_external_link_style http://meta.wikimedia.org/wiki/Help:Navigational_image#Projects_that_allow_ embedding_images_in_external_link_style
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Charles Collis.
*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* Dyson -- the cleaner that doesn't lose suction.
http://www.dyson.com *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*