ActionScript 3.0 :: Shuffle A Picture Puzzle In Flash?

make a classic 15 piece sliding picture puzzle. I need to shuffle the pieces in order to play the game and to do this have made an array of numbers 0 -14 and shuffled them. I then made a for loop which run 15 times using the pop method to take the last number from the array for each loop and store it in a variable shuffleVal. I have tested this and it works fine producing the 15 randomized numbers seperately, however when I try to use shuffleVal as a parameter for each Tiles boardPosition it only refers to the last value popped rather than each one from the loop. I have provided the code from my controller file .

CODE:-

import Tile;
import Jumble;
var shuffle:Array=[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14];[code].....