AJAX Introduction by Bhanwar Gupta - HTML preview

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Ajax: XML data, and a new tool

a new JavaScript function. . This lets JavaScript programs send out requests for data (images, XML, whatever) on their own, without waiting for a user click.

JavaScript programs can now go off
and “do their own thing,” including
getting data from
elsewhere, without
waiting for
the user to do something!

^browser XMLHttpRequest()^request
JavaScript Engine
UI
HTML / CSS XML
HTML / CSS^XML
data data
data data
other
other
data (e.g.
data (e.g.
images)

images)
JavaScript
JavaScript
code
code
data

XML data support. Browsers can now store XML data, and access / manipulate from JavaScript programs via the JavaScript engine.