%arr1 = (
	{ id =>  1, name => 'Frank', cat => 'Cat1', rating => 5 },
	{ id =>  2, name => 'John', cat => 'Cat1', rating => 4 },
	{ id =>  3, name => 'Smith', cat => 'Cat1', rating => 3 },
	{ id =>  4, name => 'Smith', cat => 'Cat2', rating => 8 },
	{ id =>  5, name => 'John', cat => 'Cat2', rating => 9 },
	{ id =>  6, name => 'Frank', cat => 'Cat2', rating => 10 },
	{ id =>  7, name => 'Frank', cat => 'Cat3', rating => 1 },
	{ id =>  8, name => 'Smith', cat => 'Cat3', rating => 8 },
	{ id =>  9, name => 'Frank', cat => 'Cat3', rating => 2 },
	{ id =>  10, name => 'John', cat => 'Cat1', rating => 3 }
);

%arr2 = (

	{ id =>  1, name => 'Frank', cat => 'Cat1', rating => 5 },
	{ id => 10, name => 'John', cat => 'Cat1', rating => 3 },
	{ id =>  2, name => 'John', cat => 'Cat1', rating => 4 },
	{ id =>  3, name => 'Smith', cat => 'Cat1', rating => 3 },

	{ id =>  6, name => 'Frank', cat => 'Cat2', rating => 10 },
	{ id =>  5, name => 'John', cat => 'Cat2', rating => 9 },
	{ id =>  4, name => 'Smith', cat => 'Cat2', rating => 8 },

	{ id =>  7, name => 'Frank', cat => 'Cat3', rating => 1 },
	{ id =>  9, name => 'Frank', cat => 'Cat3', rating => 2 },
	{ id =>  8, name => 'Frank', cat => 'Cat3', rating => 8 },

);