default
{
    state_entry()
    {
        llRequestPermissions(llGetOwner(), PERMISSION_TAKE_CONTROLS);
    }

    run_time_permissions(integer perms)
    {
        if (perms & PERMISSION_TAKE_CONTROLS)
            llTakeControls(CONTROL_UP | CONTROL_DOWN, TRUE, TRUE);
    }

    controls(key avatar, integer level, integer edge)
    {
        if (level & edge & CONTROL_UP)
            llOwnerSay("UP pressed");
        if (~level & edge & CONTROL_UP)
            llOwnerSay("UP released");
        if (level & edge & CONTROL_DOWN)
            llOwnerSay("DOWN pressed");
        if (~level & edge & CONTROL_DOWN)
            llOwnerSay("DOWN released");
    }
}