Split to Layers Script Layer Selection Order

Hello!

I've been using David Jensen's "Split to Layers" script and it works great.  However, I've run into some problems with the order in which layers are searched out and created.

Here is how the script scans the image and thus creates layers based on what is surrounded by transparency.  Please note the order in which the blocks are created (red text):

The process scans starting from the top (1), goes to the left(2), then the right(3), then drops down(4), then moves left(5).

What I really need it to do is create the layers in this order:

Always starting from the left and processing to the right.

Like so:

Is this even possible?  Any help would be greatly appreciated!