<html>
<body>
<script type="text/javascript">
function Car() {
}
Car.prototype.color = "blue";
Car.prototype.doors = 4;
Car.prototype.mpg = 25;
Car.prototype.showColor = function() {
document.write(this.color);
};
var oCar1 = new Car();
var oCar2 = new Car();
oCar1.showColor();
document.write("<br />")
oCar2.showColor();
</script>
</body>
</html>