<LAYER ...> Syntax
<LAYER
ABOVE="layer_name"
BACKGROUND="file_name.gif"
BELOW="layer_name"
BGCOLOR="#rrggbb|Colour Name"
CLIP="left, top, right, bottom"
LEFT="pixel_value"
NAME="Unique_identifier"
SRC="content_reference"
TOP="pixel_value"
VISIBILITY="show|hide|inherit"
WIDTH="pixel_value"
Z-INDEX="number"
>