To your second question, there is an interesting example on WDDX at webmonkey.com ( http://hotwired.lycos.com/webmonkey/99/15/index3a.html?tw=authoring) that demonstrates an application where data is sent to the client with WDDX. It is then modified by the user on the client and not until he is done is the data sent back to the server again with WDDX.
HTH
--------------
Ian Skinner
Web Programmer
BloodSource
www.BloodSource.org
Sacramento, CA
"C code. C code run. Run code run. Please!"
- Cynthia Dunning
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