The way to handle your question is implemented in the file postHandler.php. However, it is crucial that you look into the index.php to see how my form is implememted. it is very posible to create a table row dynamically with some indeces, say name='denomination100",but it up to you........ If you decide to follow my way, you need to handle the check box.
the important answer to your question is in line 2, between line 18 to 43
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good luck ///////////
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Conco