var PesoArt;
var CostoArt;
var Tarifa;

function ComputeForm(form){

var ValFlete;
ValFlete = PesoArt * Tarifa;

var resultFlete = ValFlete.toFixed(2);
form.Flete.value = resultFlete;

if (form.CostoArt.value == '') {
	CostoArt=0;
}
if (form.CostoArt.value == '0') {
	CostoArt=0;
}

var ValCargoComb;
if (Tarifa<= 0.89){
	ValCargoComb=0;
} else {
ValCargoComb = PesoArt * .35;
}

var resultCargoComb = ValCargoComb.toFixed(2);
form.CargoComb.value = resultCargoComb;

var ValSeguro; 
if (CostoArt<=100){
	ValSeguro = 0;
}

if(CostoArt>=101) {
	ValSeguro = CostoArt * .015;
}

if (Tarifa<=0.89){
	ValSeguro = 0;	
	}
	
var resultSeguro = ValSeguro.toFixed(2);
form.Seguro.value = resultSeguro;

var ValDGA;
if (Tarifa<=0.90){/*menor  o igual que*/
	ValDGA=0;
} else {
	ValDGA = PesoArt * .15;
}
var resultDGA = ValDGA.toFixed(2);
form.DGA.value = resultDGA;

var ValITBIS;
if (Tarifa <=0.00) {
	ValITBIS=0;
} else {
ValITBIS = ValFlete * .16;
var resultITBIS = ValITBIS.toFixed(2);
form.ITBIS.value = resultITBIS;
}

var ValAirportFee;
if (Tarifa<=0.89) {
	ValAirportFee=0;
} else {
	ValAirportFee = PesoArt * .06;
}
var resultAirportFee = ValAirportFee.toFixed(2);
form.AirportFee.value = resultAirportFee;

var ValTOTAL;
if (Tarifa==0.4){
	ValTOTAL = ValFlete + ValITBIS;
} else {
	ValTOTAL = ValFlete + ValCargoComb + ValSeguro + ValDGA + ValITBIS + ValAirportFee;
}
var resultTOTAL = ValTOTAL.toFixed(2);
form.TOTAL.value = resultTOTAL;

var ValTOTALRD;
if (Tarifa==0.4){
	ValTOTALRD = ValFlete + ValITBIS;
} else {
	ValTOTALRD = ValFlete + ValCargoComb + ValSeguro + ValDGA + ValITBIS + ValAirportFee;
}
var resultTOTALRD = ValTOTALRD * 37.90;
form.TOTALRD.value = resultTOTALRD.toFixed(2);
}

function SetPesoArt(peso) {
PesoArt = peso.value;
}

function SetCostoArt(costo) {
CostoArt = costo.value;
}

function SetTarifa(tarifa) {
Tarifa = tarifa.value;
}

function ClearForm(form){
    form.PesoArt.value = "";
	form.CostoArt.value = "";
	form.Flete.value = "";
	form.CargoComb.value = "";
	form.Seguro.value = "";
	form.DGA.value = "";
	form.ITBIS.value = "";
	form.AirportFee.value = "";
	form.TOTAL.value = "";
	form.TOTALRD.value = "";
}