InDesign - Convert to CMYK

Can someone please tell me why this script gives the following error when I try to compile it?
Syntax Error
Expected expression, etc. but found “:”.


tell application "Adobe InDesign CS2"
   tell active document 
      set theListOfColors to (every color where color space is not cmyk) 
      set properties of every color of active document to {color model:process, color space:cmyk} 
   end tell 
end tell 

I’ve looked in the InDesign dictionary and it looks like the correct syntax to me
Ta

A few properties were slightly off:


tell application "Adobe InDesign CS2"
	tell active document
		set theListOfColors to (every swatch whose space is not CMYK)
		repeat with i from 1 to (count of theListOfColors)
			set properties of item i of theListOfColors to {model:process, space:CMYK}
		end repeat
	end tell
end tell

Great!! Thank you for that!!