private function getRandom(low:Number, high:Number, excludes:Array):Number
        {
            var possible:Array = new Array;

            for(var i:int=0; i <= high; i++){
                if((excludes.indexOf(i))===-1){
                    possible.push(i);
                }
            }

            return possible[Math.floor(Math.random() * (1+(possible.length-1)-low)) + low];
        }