Automatical export of textures from secondlife

Hi,
i saw few projects where texture(JPG only, other formats are not supported) is automatically exported from SL to web. You just need to place texture into an in-world object inventory and it appears at once in web. Correct me if i'm wrong but LSL does not provide direct texture export capabilities.
So i'm currious what is the method for such texture export? Any ideas?

Dunno if this works, I haven't tried it, but you might try getting the UUID of the texture and going here..

http://secondlife.com/app/image/[texture uuid]

..but replace [texture uuid] with the actual UUID.

I should imagine it's usually done by modifying the SL client software, or by using LibSL.