Exercise in summing

gistfile1.js

// http://www.codewars.com/kata/52cd0d600707d0abcd0003eb/train/javascript
// Test Failed: maximumSum with n>values.length not working as expected

var values = [5, 4, 3, 2, 1];

function minimumSum(values, n){
	values.sort();
	var total = 0;
	for (var i = 0; i < n; i++) {
		total += values[i];
	}
	return total;
}

function maximumSum(values, n) {
	values.sort().reverse();
	var total = 0;
	for (var i = 0; i < n; i++) {
		total += values[i];
	}
	return total;
}

console.log(minimumSum(values, 2));
// should return 1+2 = 3

console.log(maximumSum(values, 3));
// should return 3+4+5 = 12