Example: CGI-style Request Procedures
 
 
- ns_register_proc binds procs to arbitrary requests:
ns_register_proc GET /demo/time getTime
  set headers [ns_conn headers]
  set browser [ns_set iget $headers User-Agent]
  set page “<html><body>\n”
  append page “Time: [clock seconds]<br>\n”
  append page “Browser: $browser\n”
  append page “</body></html>”
  ns_return 200 text/html $page