Ajax

function getWards()
{
    $.ajax({
        url: 'http://localhost/health/index.php/work/getWards',
        type: 'POST',
        crossDomain: true,
        success: function(data) {
            data = trimData(data);
            var json_parsed = $.parseJSON(data);
            for (var i = 0; i < json_parsed.length; i++) {
                var newOption = $('<option>');
                newOption.attr('value', json_parsed[i]['ward']).text(json_parsed[i]['ward']);
                $('#ward').append(newOption);

            }
        }
    });
}