random hero selection system

i can't believe i'm asking thit... but... i wasn't able to to find a suitable way 2 do a random hero selection system. i tried:

i set:
--- variant [unit group named "Heros"]

event:

add [unit type of [ a hero ] to [unit group[Heros]]
add [unit type of [ another hero ] to [unit group[Heros]]
add [unit type of [ and another ] to [unit group[Heros]]
....

for integer A from 1 to 10
--- create a [random unit from unit group[Heros] for player(integerA) at [random
point in [a region]]

--- remove last created unit from [unit group [Heros]]

well.. i don't know why the unit group is still empty after the "add [unit type]..."
So.. i tried the the next trigger:

Hero(1 to 10) [arrayed Unit type variant]
MyInteger [integer variant]

Set hero(1) = [a hero]
Set hero(2) = [another hero]
Set hero(3) ....


for integer A from 1 to 10
set MyInteger = random integer between 1 and 10

create a Hero(MyInteger) for player(integer A) at [random point in [a region]

ok.. this one works... yes, but. can you see the problem?
the variant MyInteger gets a random integer between 1 and 10 every time. not a different number every time. Do you undestand?

if anyone knows how to resolve this...
c ya.

hero[1]=footman
...
hero[10]=doom guard
heroN = 10

for integer A from 1 to 10
set MyInteger = random integer between 1 and heroN
...
(do stuff with hero[MyInteger])
...
set hero[MyInteger]=hero[heroN]
set heroN = heroN - 1

edit: and in your unit group version, you were removing last created unit, but what you had to remove was the Random unit that came out

exactly.
but how can i remove an exact number between 1 and 10??

what's that about HeroN?

ooh! sorry. i understand

but.. check it again..
doesn't work... still.

mmmh.. you're right...
did you do it by yourself?? or you saw it in another place?

i'll apply it right now!! thanks Lord Vexorian! ^_^