Помогите исправить warning's

[Andrey_Basov]

Вот сами warning's:

warning 219: local variable "modelid" shadows a variable at a preceding level
warning 213: tag mismatch
warning 213: tag mismatch
warning 213: tag mismatch
warning 213: tag mismatch
warning 213: tag mismatch
warning 213: tag mismatch
warning 213: tag mismatch
warning 213: tag mismatch
warning 213: tag mismatch
warning 213: tag mismatch
warning 213: tag mismatch
warning 213: tag mismatch
warning 213: tag mismatch
warning 205: redundant code: constant expression is zero
warning 204: symbol is assigned a value that is never used: "modelid"

Вот строки:

stock GetVehicleType(carid)
{
    new modelid = GetVehicleModel(carid);
	if(modelid == 483 || modelid == 534 || modelid == 535 || modelid == 536 || modelid == 558 || modelid == 559
	|| modelid == 560 || modelid == 561 || modelid == 562 || modelid == 565 || modelid == 567 || modelid == 575
	|| modelid == 576) return 1;
	return 0;
}

Помогите пожайлуста.