<script type="text/javascript">
function Car(sColor,iDoors,iMpg) {
this.drivers = new Array("Mike","John");
Car.prototype.showColor = function() {
document.write(this.color);
var oCar1 = new Car("red",4,23);
var oCar2 = new Car("blue",3,25);
oCar1.drivers.push("Bill");
document.write(oCar1.drivers);
document.write(oCar2.drivers);