[Typo3-dev] extension TCA question

[Jeff Segars]

I think something like this could be accomplished through the use of 
XMLHttpRequest, which lets you dynamically update portions of a page 
without reloading the entire page.  Not sure how much backend code would 
have to change to implement this....I'll try to look into it over the 
weekend if there's any interest

See here for more info: 
http://jpspan.sourceforge.net/wiki/doku.php?id=javascript:xmlhttprequest

jeff