Making a spot color channel of a selection

Question

I want to make a spot color channel out of the current selection.
How can I use the seletion to make the new channel?
tell application "Adobe Photoshop CS6"
    activate
    set useropacity to 50
    set teller to 1
    set userchannelname to "kleur " & teller
    set kleur to foreground color
    tell current document
        make new channel with properties {kind:spot color channel, name:userchannelname, channel color:kleur, opacity:useropacity}
    end tell
end tell
Maurits Brock

Answer 1

tell application "Adobe Photoshop CS5"
  activate
          set useropacity to 50
          set teller to 1
          set userchannelname to "kleur " & teller
          set kleur to foreground color
          tell current document
  copy
  clear
  make new channel with properties ¬
                              {kind:spot color channel, name:userchannelname, channel color:kleur, opacity:useropacity}
  paste
  invert selection
  clear
          end tell
end tell