Fill a select with a catalog loaded using JSON and sorts them by name

fill_sort_cities_select.js

function sort_cities(a, b) {
	   var compA = a.name.toUpperCase();
	   var compB = b.name.toUpperCase();
	   return (compA < compB) ? -1 : (compA > compB) ? 1 : 0;
}

jQuery( document ).ready( function( $ ) {
	$.getJSON('CHANGE_ME_JSON_URL?callback=?', function(data) {
		data = jQuery.makeArray(data);
		data.sort(sort_cities);
		$.each(data, function(i,item){
			$('#CITIES_SELECT_ID').append($("<option></option>").attr("value",item.id).html(item.name));
	    });
	});
}