In the smaller nav bar, when an icon is clicked, I want it to
go to position 5 and I want the icon that was in position 5 to go
to whatever position the clicked icon had been in. Also, icons in
positions 1-4 are the same size (at 14% of their original size),
and icon 5 will grow to 18% of its original size.
What's a good strategy for doing this? And where will I put
the scripts? Would I use a hittest and variables?