Item buying.

The 4 icons on the left are the item classes.
The backicon on bottom left opens the inventory menu (another screen).
The 16 icons are placeholders for coming items to buy.
The 3 icons on the bottom handle the pages.
The right side has information about the current icon.
The left icon on the bottom right is for buying, the middle for selling and the right for leaving the dialog.

hmm...(this comment is lame ,i know)the right arrow from the middle ones should be pointing another side >.>

But anyway,its a good idea and looks that its also done pretty good

The midddle icons on the bottoms are the wrong ones, the others are not made yet.

Holy crap this looks like alot of work... I can't wait to see how this project turns out.

Aha, this looks interesting, Are you going to use pages?

OffTopic: If you all say this looks hard to make, i can tell you a secret, its just alot of variables and loop(s).