Information on the structure of the button graphic

The graphic must be structured in the following manner:
From top to bottom, it must have the following states and they must have exactly the same size.

  1. Normal
  2. Mouseover
  3. Mousedown

From left to right, the columns are defined in the same width, and as follows:

  1. Sitemap is closed
  2. Sitemap is open

The height of the element is automatically adapted to the "Normal" state and its width adapted to the first column.