Hi, I'm working on an application that is supposed to allow a user to upload a picture, which would be immediately displayed... how do I go about doing this?

Ajax uploader and ajax update. Quite a few about now actually. Like the idea. May have a pop at it myself.

I assume you need a callback function when the upload is completed 'cos as you know ajax is asynchronous, and using synch. ajax kinda defeats the object / causes hanging.

The jQuery uploadify looks good: http://www.uploadify.com

It has an OnAllComplete function, which should allow you to update a slideshow or whatever.
PS-If your problem is solved mark the thread as solved

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