$scope.roleList = [
	{ label : "User", id : "role1", children : [
	  { label : "subUser1", id : "role11", children : []},
	  { label : "subUser2", id : "role12", children : [
		{ label : "subUser2-1", id : "role121", children : [
		  { label : "subUser2-1-1", id : "role1211", children : [] },
		  { label : "subUser2-1-2", id : "role1212", children : [] }
		]}
	  ]}
	]},

	{ label : "Admin", id : "role2", children : [
		{ label : "subAdmin1", id : "role11", children : [] },
		  { label : "subAdmin2", id : "role12", children : [
			{ label : "subAdmin2-1", id : "role121", children : [
			  { label : "subAdmin2-1-1", id : "role1211", children : [] },
			  { label : "subAdmin2-1-2", id : "role1212", children : [] }
			]}
		  ]}
	]},

	{ label : "Guest", id : "role3", children : [
		{ label : "subGuest1", id : "role11", children : [] },
		  { label : "subGuest2", id : "role12", children : [
			{ label : "subGuest2-1", id : "role121", children : [
			  { label : "subGuest2-1-1", id : "role1211", children : [] },
			  { label : "subGuest2-1-2", id : "role1212", children : [] }
			]}
		  ]}
	  ]}
  ];