function calc()
{
var tarif = a[c+d]("tarif");
var result = a[c+d]("result");
var cars = a[c+d]("cars");
var tarifopr = 0;
var day = 0;
var price = 0;
var SALE = 1.0;
var urlt;
tarifopr = tarif.options[tarif[b]].value;
car = cars.options[cars[b]].value;
dotel = "