[thelist] checking uploaded filetypes

if you want a client side solution, you could probably write a java applet.
that would let you do a few things extra but would require some socket
programming and may restrict your audience.

it could be possible to write something on the server side which checks the
header of the uploaded file to determine its type, but this would consume
server resources and may have to be developed.

sorry about the "just the pointers" type answers.

regards