Evaluated addcat http://i.imgur.com/KxACISJ.jpg
Evaluated addcat http://upload.wikimedia.org/wikipedia/commons/thumb/1/1d/DodgeCatCon.jpg/440px-DodgeCatCon.jpg
Evaluated proc add-cat {url} {[addcat $url]}
Evaluated add-cat foo
Evaluated proc add-cat {url} {addcat $url}
Evaluated setimg hector http://i.conio.net/hector.jpg
Evaluated proc hector {} {rainb [catsay "useless use of cat detected"]}