<script type="text/javascript">
var FordLow, FordMed, FordHigh, GMLow, GMMed, GMHigh;
var DodgeLow, DodgeMed, DodgeHigh, LowCutoff, HighCutoff;
var Make, VehiclePrice, LowMarkup, MedMarkup, HighMarkup;
var MarkupRate, Markup, FinalCost, ErrorFlag;

var FordLow = 0.02;
var FordMed = 0.03;
var FordHigh = 0.05;

var GMLow = 0.05;
var GMMed = 0.07;
var GMHigh = 0.10;

var DodgeLow = 0.01;
var DodgeMed  = 0.02;
var DodgeHigh  = 0.03;

var LowCutoff = 10000;
var HighCutoff = 20000;
var ErrorFlag = 0;

Make = prompt("Is your Vehicle a Ford, GM, or Dodge?", "Ford");
Make = parseInt(Make);


switch(Make)
{
case "Ford":
		 LowMarkup = FordLow;
		 MedMarkup = FordMid;
		 HighMarkup = FordHigh;
break;

case "GM":
		 LowMarkup = GMLow;
		 MedMarkup = GMMid;
		 HighMarkup = GMHigh;
break;

case "Dodge":
		 LowMarkup = DodgeLow;
		 MedMarkup = DodgeMed;
		 HighMarkup = DodgeHigh;
break;

default:
				alert("You Typed" + Make + "The options are Ford, GM, or Dodge");
				ErrorFlag = 1;
break;
}

if (ErrorFlag == 0)
{
VehicleCost = prompt("What is the price of your vehicle?", "1000");

 if (VehiclePrice > HighCutoff)
		 {
		 	MarkupRate = HighMarkup;
		 }
else if (VehicleCost < LowCutoff)
		 {
		 MarkupRate = LowMarkup;
		 }
else
		 {
		 MarkupRate = MedMarkup;
		 }

Markup = VehicleCost * MarkupRate;
FinalCost = VehiclePrice + Markup;

document.write("The cost of your Vehicle was" +VehiclePrice);
document.write("<br> The Make of your Vehicle is" +Make);
document.write("<br> The final sales price of the vehicle is" +FinalCost);
}

else if (ErrorFlag == 1)
{
document.write("You Typed" + Make + "The options are Ford, GM, or Dodge");
}

</script>