AS3 - Random capital letter.

gistfile1.as

const CHR: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"
];
const CHRLEN:Number = CHR.length;

function getRandom():String {
	return CHR[ CHRLEN * Math.random() >> 0 ];
}