function scr_layer_set_objects_active(arg0, arg1)
{
    var instances = layer_get_all_elements(layer_get_id(arg0));
    for (var i = 0; i < array_length(instances); i++)
    {
        if (arg1)
            instance_activate_object(instances[i]);
        else
            instance_deactivate_object(instances[i]);
    }
}