Head Rush Ajax

you’re on your way 4

101

ajax requests

function getCustomerInfo() {

var phone = document.getElementById(“phone”).value;

var url = “lookupCustomer.php?phone=” + escape(phone);

request.open(“GET”, url, true);

request.onreadystatechange = updatePage;

request.send(null);

}

All that’s left to complete this step is to actually send the request.

This is a piece of cake, as you saw in Chapter 1. Let’s look at the last

line of getCustomerInfo() now:

Send the request to the server

This sends the request to the

Break Neck web server.

We sent the customer’s phone

number as part of the request

URL, so we don’t need to send any

other data to the server.

Make sure you’re keeping your version of pizza.html up to date.

Open up pizza.html, and add the getCustomerInfo() function if

you haven’t already. You should also have lookupCustomer.php

in the same directory as your pizza.html and breakneck.css les.

So I’m still waiting to nd out more

about when that ready state changes.

Make sure you set up

the function for the

browser to run when

the ready state changes

before you call send().