function generePassword(nb_caract) {
	var chaine = Array('a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z','0','1','2','3','4','5','6','7','8','9');
	var pass = '';
	var nb, u;
	for (u=1; u <= nb_caract; u++) {
		nb = chaine.length;
		nb = Math.round(Math.random()*chaine.length);
		pass += chaine[nb];
	}
	return (pass);
}