Dynamicly resizeable custom Buttons - how to make?

[Desttro]

Please I have bought GUI pack for 2D mobile games. I have vectors for buttons but I don't know how to make it "smaller" - dynamically resizable for Unity, as is in tk2d UI demo.

This is my bought button:


And I need to make from it this (with all corners, etc.)



In Unity, I will resize it according to my needs and add text. But I don't know how to make it in Photoshop or Illustrator, how to smaller it with keep corners and make "middle" of button to be dynamic.

Thank you for help.

[Desttro]

solved by slicing in tk2d

[unikronsoftware]

That's it, slicing will solve that issue. The middle tiling bit can be done with a separate tiled texture.