<?xml version="1.0" encoding="UTF-8"?>
<!ELEMENT panelsets (set+)>
<!ELEMENT set (item+)>
<!ATTLIST set
	id CDATA #REQUIRED
	level CDATA #REQUIRED
	popup CDATA #IMPLIED
>
<!ELEMENT item EMPTY>
<!ATTLIST item
	id CDATA #REQUIRED
	param CDATA #REQUIRED
	class CDATA #REQUIRED
>