function NTSI_findItemGID(GID){
    var _itemunit = getUnit(4,-1,-1,GID);
        if (!_itemunit) { //retry to find item
            var _itemfound = false;
            _itemunit = getUnit(4);
            if(_itemunit){
                    do{
                        if(_itemunit.gid == GID && (_itemunit.mode == 3 || _itemunit.mode == 5)){
                            _itemfound = true;
                            _itemunit = copyUnit(_itemunit);
                            break;
                        }
                    } while(_itemunit.getNext());
                    if (!_itemfound){
                        //Dprint("finding failed "+GID);
                        return false;
                    }
            }
        }
        return _itemunit;
}