page 8 of 8 RPC using XMLHttprequest

Table of Contents: Ajax RPC Intro; Ajax HTML; Ajax JavaScript; Ex. 1: Arithmetic; Ex. 2: Lookup by Zip Code; Ex. 3: Changing Content; Ex. 4: Header Requests; Sample Code and Resources

Related pages: Remote Scripting; RPC Using an Iframe

Sample Code and Resources

The code. Here are two JavaScript files for the taking

The JavaScript code to create and initialize XMLHttprequest object.
The response handlers. This includes do_rpc, the utilities shown in the demos and some unused example code. All of this is shared with the RPC method using Iframe.
And a bonus file that combines the two methods—RPC with an iframe or RPC with XMLHttprequest (AJAX)—creating whichever object the browser supports.

You are free to take the code and modify it or use it as is in any kind of project. This is code is intended for demonstration and you are responsible for its reliability and fitness for purpose in your projects.

Links to Other Resources

You can check the following resources on this topic and see different permutations on how to do remote scripting with an XMLHttprequest object (AJAX). Seeing other's explanations can help you adapt this script to your project needs.

Jibbering: Using the XML HTTP Request object
Apple Developer Connection: Dynamic HTML and XML: The XMLHttpRequest Object.
O'Reilly Onlamp.com: A Simpler Ajax Path.
Mozilla Developer Center: Asynchronous JavaScript and XML (AJAX)
Quirksmode: 2005: The year of data retrieval.
Sitepoint: AJAX: Usable Interactivity with Remote Scripting
XML.com: Very Dynamic Web Interfaces
fiftyfourelven: Index to serveral articles
Lukw Interface Designs: AJAX & Interface Design