template.Must(sub.Parse(contents))
		template.Must(templates.AddParseTree(name, sub.Tree))
	}

	// Embedded files.
	def("css", loadCSS("html/common.css"))
	def("header", loadFile("html/header.html"))
	def("graph", loadFile("html/graph.html"))
	def("graph_css", loadCSS("html/graph.css"))
	def("script", loadJS("html/common.js"))
	def("top", loadFile("html/top.html"))
	def("sourcelisting", loadFile("html/source.html"))