How to Sort an Associative Array (object) in Javascript

sortObj.js

// http://www.latentmotion.com/how-to-sort-an-associative-array-object-in-javascript/

function sortObj(arr){
	// Setup Arrays
	var sortedKeys = new Array();
	var sortedObj = {};

	// Separate keys and sort them
	for (var i in arr){
		sortedKeys.push(i);
	}
	sortedKeys.sort();

	// Reconstruct sorted obj based on keys
	for (var i in sortedKeys){
		sortedObj[sortedKeys[i]] = arr[sortedKeys[i]];
	}
	return sortedObj;
}