function set_province_event()
{
    $('#province').change(function() {
        $.post("store-get-city_cb.php", { province: $(this).val() }, function(data) {
            var city = data.split("|");
            var option = '<option value="">Choose City</option>';
            
            for (var i in city)
            {
                option += '<option value="' + city[i] + '">' + city[i] + '</option>';
            }
            
            $("#city").html(option);
        });
        
        $('#postcode').val('');
        $('#radius').val('Within...');
    });
    
    $('#city').change(function() {
        $('#postcode').val('');
        $('#radius').val('Within...');
    });
    
    $('#postcode').change(function() {
        $('#province').val('Choose Province');
        $('#city').val('Choose City');
    });
    
    $('#radius').change(function() {
        $('#province').val('Choose Province');
        $('#city').val('Choose City');
    });
}