Just do this:
Code:
var rndSkin = 0;
rndSkin = integer(random(6));
my.skin = rndSkin + 1;
Also note that random(6) will create value between 0-5, so thats why I add 1 to the skin at th end. I'm not sure about using 'random_seed' over and over again, it works great for me if I add it once in the main function.

greets

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