AJAX - The Complete Reference

44 Part I: Core Ideas

Yet to consume such content, you would need to go into the packet, extract the

particular data items, and insert it into the parent XHTML document. The code to do that is

shown here and is actually quite terse compared to how it can get with a more complex

XML response format:

function handleResponse(ifr)

{

/* clear network timeout */

if (timer)

clearTimeout(timer);

var ifrDoc = null;

var xmlDoc = null;

var ifrWindow = ifr.contentWindow || ifr.contentDocument;

if (ifrWindow.document)

ifrDoc = ifrWindow.document;

else

ifrDoc = ifrWindow;

if (ifrDoc.XMLDocument)

xmlDoc = ifrDoc.XMLDocument;

else

xmlDoc = ifrDoc;

FIGURE 2-6 Two-way iframes with a script response