measure = 'Gallon';
cmeasure = 'Gas'
currency = '$';
document.write('');
document.write('');
function dogascalc() {
if (isNaN(document.getElementById('miles').value) || isNaN(document.getElementById('price').value) || isNaN(document.getElementById('mpg').value) || isNaN(document.getElementById('days').value)) {
alert("Please enter only numbers!");
} else if (!document.getElementById('miles').value || !document.getElementById('price').value || !document.getElementById('mpg').value || !document.getElementById('days').value) {
alert("Please fill in every field!");
} else if (document.getElementById('days').value > 7) {
alert("There's only 7 days in a week!");
} else {
miles = document.getElementById('miles').value;
price = document.getElementById('price').value;
mpg = document.getElementById('mpg').value;
days = document.getElementById('days').value;
dailytotal = Math.round(((miles/mpg)*price)*100)/100;
weeklytotal = Math.round((((miles/mpg)*price)*days)*100)/100;
yearlytotal = Math.round(((((miles/mpg)*price)*days)*52)*100)/100;
total = "
Daily Savings: " + currency + dailytotal.toFixed(2) + "
Weekly Savings: " + currency + weeklytotal.toFixed(2) + "
Yearly Total: " + currency + yearlytotal.toFixed(2);
document.getElementById('answer').innerHTML=total;
new Effect.Appear(document.getElementById('answer'));
}
}
document.write('');