Here's a basic JavaScript/AJAX example that demonstrates the process of asynchronously requesting the contents of a file and displaying it within a textarea.
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I've done alot of JavaScript/AJAX programming from scratch (without using any AJAX frameworks) over the last couple years, so I thought I would share some of what I've learned. This is the first of a series of examples that I'll post if there is an interest. So, please let me know if you want me to post more.