Everything I have explained in the previous page must seem like disparate pieces of a puzzle. For a better understanding of what has been done, copy and paste the following code into a frame's Actions Window. Press Ctrl + Enter after the code has been pasted, and take care to notice how the values of your array are modified and/or expanded:
This is a companion discussion topic for the original entry at http://www.kirupa.com/developer/actionscript/array2.htm
