Great Script, Slight Error

Great contribution, Gavin. I've been itchin' to reverse-engineer Gmail add attachment script, but ran across this forum first :).

There is a sligt error in your script, though. When you remove a file input from your div tags, you decrement the form_count variable and then check to see if it equals 0 to change the more link to show the appropriate text:

Code:
//remove file attachment
...