Author Id: 25004
Author Name: Andrea
Post Content: [spoiler]
#dynamic 0x800000
#org @inizio
checkflag 0x1000
if 0x1 goto @part_4
lock
message @msg_1 0x5
compare LASTRESULT 0x1
if 0x1 goto @part_2
if 0x0 goto @part_3
end

#org @part_2
message @msg_2 0x6
givepokemon 0x1 0x5 0x0 0x0 0x0 0x0
hidesprite 0x1
setflag 0x1000
end

#org @part_3
message @msg_3 0x6
end

#org @part_4
message @msg_4 0x6
end

#org @msg_1
= message of chose

#org @msg_2
= if player chose yes

#org @msg_3
= if player chose no

#org @msg_4
= if player has already chosen a pokemon
[/spoiler]
well the script when you chose a pokemon setflag 0x1000, so if you click on the other 3 pokeball will go directly to the message 4 :)
to disappear the pokeball in AM set ID PERSON to number of flag set in script in this case ID PERSON = 1000 :)
ahh don't forget to change parametres of givepokemon for other 2 pokeball :)