Note: The answers below reflect the state of legacy browsers in 2009.
Now you can actually do it. See the answer in this question:
How to set file input value programatically (i.e.: when drag-dropping files)?
I have two input field of type FILE. Is it possible that if user browses and chooses a file in one field ,that same file gets chosen in other field automatically.
<input type="file" name="file1" />
<input type="file" name="file2" />