// Tree structure definition
var TREE_NODES = [
	["This frame", null, null,
		["Google", "http://www.google.com/", null],
		["Lycos", "http://www.lycos.com/", null],
		["Yahoo!", "http://www.yahoo.com/", null]
	],
	["Other frame", null, null,
		["Google", "http://www.google.com/", "contents"],
		["Lycos", "http://www.lycos.com/", "contents"],
		["Yahoo!", "http://www.yahoo.com/", "contents"]
	],
	["New window", null, null,
		["Google", "http://www.google.com/", "_blank"],
		["Lycos", "http://www.lycos.com/", "_blank"],
		["Yahoo!", "http://www.yahoo.com/", "_blank"]
	]
];