private boolean flashOn = false;

    public void timer()
    {
        flashOn = !flashOn;
        status();
    }

    public void status()
    {
        Device device = getDevice();
        art.library.model.devices.vms.asf.AsfStatus status = (art.library.model.devices.vms.asf.AsfStatus) device.getDeviceStatus();
        art.library.model.devices.DeviceAlarms alarms = (art.library.model.devices.DeviceAlarms) device.getDeviceAlarms();
        String color1 = "#000000";
        String color2 = "#000000";
        setAttribute("arrow-down", "display", "none", 999);
        setAttribute("arrow-left", "display", "none", 999);
        setAttribute("arrow-right", "display", "none", 999);
        setAttribute("cross", "display", "none", 999);
        long alarm_warning_value = device.getAlarm("alarm_warning_value");
        long alarm_alarm_value = device.getAlarm("alarm_alarm_value");
        if (alarm_alarm_value > 0)
        {
            color1 = "#FF0000";
            color2 = "#7C0000";
        } else if (alarm_warning_value > 0)
        {
            color1 = "FFFF7C";
            color2 = "FFFF00";
        } else
        {
            color1 = "#00FF00";
            color2 = "#007C00";
        }
        switch (status.status)
        {
            case DeviceStatus.STATUS_ALARM:
                color1 = "#FF0000";
                color2 = "#7C0000";
                break;
            case DeviceStatus.STATUS_SIMULATION:
                color1 = "#7C7C7C";
                color2 = "#3E3E3E";
                break;
            case DeviceStatus.STATUS_DISABLE:
                color1 = "#0000FF";
                color2 = "#00007C";
                break;
            case DeviceStatus.STATUS_UNKNOWN:
                setAttribute("alarm", "display", "none", 999);
                setAttribute("arrow-down", "fill", color2, 999);
                break;
            case DeviceStatus.STATUS_OFFLINE:
                color1 = "#FF00FF";
                color2 = "#7C007C";
                setAttribute("alarm", "display", "none", 999);
                setAttribute("arrow-down", "fill", color2, 999);
                break;
        }
        if (status.status != DeviceStatus.STATUS_OFFLINE && status.status != DeviceStatus.STATUS_UNKNOWN)
        {
            switch (status.state)
            {
                case art.library.model.devices.vms.asf.AsfStatus.STATE_ARROW:
                    setAttribute("arrow-down", "display", "inline", 999);
                    break;
                case art.library.model.devices.vms.asf.AsfStatus.STATE_CROSS:
                    setAttribute("cross", "display", "inline", 999);
                    break;
                case art.library.model.devices.vms.asf.AsfStatus.STATE_FLASHING_LEFT:
                     setAttribute("arrow-left", "display",flashOn ? "inline" : "none", 999);
                    break;
                case art.library.model.devices.vms.asf.AsfStatus.STATE_LEFT:
                    setAttribute("arrow-left", "display", "inline", 999);
                    break;
                case art.library.model.devices.vms.asf.AsfStatus.STATE_FLASHING_RIGHT:
                       setAttribute("arrow-right", "display", flashOn ? "inline" : "none", 999);
                    break;
                case art.library.model.devices.vms.asf.AsfStatus.STATE_RIGHT:
                    setAttribute("arrow-right", "display", "inline", 999);
                    break;
            }
        } 
        
        setAttribute("background", "fill", color1, 999);
        setAttribute("border", "stroke", color2, 999);
        setAttribute("arrow-down", "fill", color2, 999);
        setAttribute("arrow-left", "fill", color2, 999);
        setAttribute("arrow-right", "fill", color2, 999);
        setAttribute("cross", "fill", color2, 999);
        setAttribute("Icon", "fill", color2, 999);
        setAttribute("alarm", "stroke", color1, 999);
        setAttribute(getElement("alarm"), "stroke-width", device.getServerityAlarm(), 999);
    }

    public void commands()
    {
        DeviceCommands deviceCommands = getDeviceCommands();
        String color1 = "#0000FF";
        String color2 = "#00007C";
        if (!deviceCommands.isEmpty())
        {
            color1 = "#00FF00";
            color2 = "#007C00";
        }
        setText("Information text", String.valueOf(device.getDeviceInformation().number));
        setAttribute("text", "display", "none", 999);
        setAttribute(getElement("alarm"), "stroke-width", 0, 999);
        setAttribute("Border", "stroke", color2);
    }