[NTLUG:Discuss] Uploading to a web site.

[steve]

I need to allow users to upload photos to my web site - but I can't 
figure out how that's done.  Clearly a PHP or CGI program can't reach 
down into the end user's machine to grab a file - but a Java or 
JavaScript program running on the client doesn't have the necessary 
privilages to write stuff onto the server's disk drive.

I could maybe do it by setting up a Wiki - but I need more control over 
the process than that.

How do I make this happen?  The server is (of course) a Linux box but 
the client's machine could be anything.

Is there a nice simple example someplace?