Code:
On *:sockopen:web: {
  [color:blue]sockwrite -n $sockname GET /path/to/page.html HTTP/1.0[/color]
  sockwrite -n $sockname Authorization: Basic $encode(myid:mypass ,m)
  sockwrite -n $sockname User-Agent: Mozilla
  sockwrite -n $sockname Host: www.somesite.com
  sockwrite -n $sockname
}