NEW CHANGES - Jan 8, 2010 by McAden:
Improved Javascript
Added validation to check for NaN
Doesn't reload the page if it doesn't need to (cancel deletion of item, or NaN value input)
Validation on NaN or cancelling deletion at 0 or negative numbers returns value to original.
Deletion through entering 0 or negative number, or clicking minus at 1 now triggers confirmation.

-- Full package --
Read txt file in package for installation instructions.

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