<!--
var varShippingFee= 20;
var varVisaFees=0;
var varTotal=0;

function calculateTotal() {
varTotal=(varVisaFees + varShippingFee);
totalAmount.value="$"+ varTotal;
}

function calculateVisaFees() {
varVisaFees=eval(service.value); 
calculateTotal();
}

function calculateShippingFee1() {
varShippingFee=20;
varVisaFees=eval(service.value); 
calculateTotal();
}

function calculateShippingFee2() {
varShippingFee=23;
varVisaFees=eval(service.value); 
calculateTotal();
}

//-->